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Zhu Y, Bailey D, Childress A, Dawson JA, Binks M, Dhurandhar NV. Greater protein quality of an egg breakfast may be inadequate to induce satiety during weight loss, compared with a cereal breakfast of equal protein quantity. Int J Food Sci Nutr 2022; 73:1096-1103. [PMID: 36237122 DOI: 10.1080/09637486.2022.2133097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
We compared the effects of consuming egg-breakfast of superior protein quality to cereal-breakfast of similar energy density and protein quantity, but lower protein quality. Two, two-week randomised crossover clinical trials included 30 otherwise healthy women with overweight or obesity. Subjects received counselling to follow a reduced-calorie diet. Under supervision, participants consumed either breakfast for one-week then crossed over to the opposite breakfast. Experiment-1 outcome variables included post-breakfast appetite hormones, glucose and insulin, subjective markers of satiety and energy intake at lunch and dinner. In Experiment-2, an appealing food (brownies) was included in lunch. Following the breakfasts, Experiment-1 showed no significant differences in outcome variables. In Experiment-2, the egg-breakfast increased fullness (p = 0.038), but lunch-time energy intake was not different. If these findings apply to other breakfasts, it suggests that in comparing two breakfasts with similar protein quantity, the greater protein quality of a breakfast may not be adequate to induce satiety.
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Affiliation(s)
- Yaqiong Zhu
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - Dylan Bailey
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - Allison Childress
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - John A Dawson
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - Martin Binks
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
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Garrido-Miguel M, Mesas AE, Fernández-Rodríguez R, Fernández-Franco S, Pozuelo-Carrascosa DP, López-Gil JF, Martínez-Vizcaíno V. The role of protein intake in the relationship between egg consumption and body composition in young adults. A mediation analysis. Clin Nutr 2022; 41:2356-2363. [PMID: 36122498 DOI: 10.1016/j.clnu.2022.08.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 08/19/2022] [Accepted: 08/26/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND & AIMS To date, the literature examining the effects of whole-egg consumption on health outcomes focuses primarily on cardiovascular health markers; however, a significant gap exists in the literature about how egg consumption may influence body composition indicators. The aim of this study was to estimate the association between egg consumption and body composition indicators and to examine whether this relationship is mediated by protein intake in young adults. METHODS A cross-sectional study was conducted involving 355 first-year university students (aged 18-30 years) from a Spanish public university. Body composition was measured using bioimpedance and dual-energy X-ray absorptiometry (DXA) and fitness components were determined using the course-navette test. Egg consumption and protein intake (both in g/day/kg of body weight) were determined using a 137-item Food-Frequency Questionnaire. ANCOVA models were used to test the mean differences in body composition indicators (body mass index [BMI], ratio waist circumference/height [WC/height], body fat mass percentage, and body lean mass percentage) by egg consumption categories (<1 egg/week, 1-4 eggs/week, ≥5 eggs/week). Hayes's PROCESS macro was used for mediation analyses. RESULTS Participants reporting high egg consumption (≥5 eggs/week) showed significantly lower BMI, WC/height and body fat mass percentage values and higher body lean mass percentage values than those reporting low egg consumption (<1 egg/week) (p < 0.05). However, these relationships were not maintained after adjusting for protein intake. Protein intake acted as a full mediator of the relationships of egg consumption with BMI (indirect effect [IE] = -1.19; 95% CI [-3.33; -0.36]), WC/height (IE = -0.01; 95% CI [-0.04; -0.01]) and body lean mass percentage (IE = 2.99; 95% CI [1.26; 5.73]) as a partial mediator of the relationship be-tween egg consumption and body fat mass percentage (IE = -2.19; 95% CI [-4.92; -0.46]). CONCLUSIONS The association between egg consumption and body composition is mediated by protein intake. This finding is important from a public health perspective, suggesting that higher egg consumption (≥5 eggs/week) may lead to a healthier body composition, especially due to higher protein intake.
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Affiliation(s)
- Miriam Garrido-Miguel
- Universidad de Castilla-La Mancha, Health and Social Research Center, Cuenca, 16071, Spain; Universidad de Castilla-La Mancha, Faculty of Nursing, Albacete, 02071, Spain
| | - Arthur Eumann Mesas
- Universidad de Castilla-La Mancha, Health and Social Research Center, Cuenca, 16071, Spain; Universidade Estadual de Londrina, Londrina, Paraná, 86057-970, Brazil.
| | | | | | | | | | - Vicente Martínez-Vizcaíno
- Universidad de Castilla-La Mancha, Health and Social Research Center, Cuenca, 16071, Spain; Universidad Autónoma de Chile, Facultad de Ciencias de la Salud, Talca, 1101, Chile
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53
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Kirkpatrick CF, Willard KE, Maki KC. Keto is Trending: Implications for Body Weight and Lipid Management. Curr Cardiol Rep 2022; 24:1093-1100. [PMID: 35794438 DOI: 10.1007/s11886-022-01731-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/21/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE OF REVIEW Very-low-carbohydrate (VLC) and ketogenic diets (KDs) have been used for weight loss and more recently in patients with insulin resistance and type 2 diabetes. The impact of VLC and KDs on lipids/lipoproteins is a concern. The purpose of this review is to discuss the impact of KDs on body weight and lipids/lipoproteins. RECENT FINDINGS VLC/KDs contribute to greater weight loss in the short term (< 6 months) compared to higher carbohydrate diets, but there is typically no difference between the diets by 12 months. Triglyceride and high-density lipoprotein cholesterol levels generally improve, but there is a variable response in low-density lipoprotein cholesterol levels, with some individuals experiencing a dramatic increase, particularly those with latent genetic dyslipidemias. Healthcare professionals should educate patients on the risks and benefits of following VLC/KDs and encourage the consumption of carbohydrate-rich foods associated with positive health outcomes.
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Affiliation(s)
- Carol F Kirkpatrick
- Midwest Biomedical Research, Suite 3, Addison, IL, USA. .,Kasiska Division of Health Sciences, Idaho State University, Pocatello, ID, 83209, USA.
| | | | - Kevin C Maki
- Midwest Biomedical Research, Suite 3, Addison, IL, USA.,Department of Applied Health Science, Indiana University School of Public Health, Bloomington, IN, 47405, USA
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Poman DS, Motwani L, Asif N, Patel A, Vedantam D. Pancreatic Cancer and the Obesity Epidemic: A Narrative Review. Cureus 2022; 14:e26654. [PMID: 35959181 PMCID: PMC9360631 DOI: 10.7759/cureus.26654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2022] [Indexed: 11/05/2022] Open
Abstract
Pancreatic cancer (PC) is one of the most frequent causes of death. It usually affects older individuals with incidence closely approaching mortality due to its early asymptomatic feature and highly metastatic nature. Multiple risk factors such as family history, smoking, and germline mutations are associated with PC development, with obesity being one of the controllable factors. This review article focuses on the compilation of various studies to help establish a correlation between obesity or an increased body mass index and PC development. Hence, in this review, we have summarised multiple biological mechanisms of PC development induced by obesity, including insulin resistance, inflammation, beta-cell dysfunction, and oxidative stress, to prove that their correlation when combined with other factors, such as smoking, alcohol and chronic pancreatitis, may increase its risk. We have also reviewed potential diagnostic and screening techniques, such as evaluating precancerous lesions in high-risk patients and management plans discussing upcoming advances in treatment tactics such as neoadjuvant therapy, to reduce post-operative complications.
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Affiliation(s)
| | - Lakshya Motwani
- Research and Development, Smt. Nathiba Hargovandas Lakhmichand (NHL) Municipal Medical College, Ahmedabad, IND
| | - Nailah Asif
- Research, Ras Al Khaimah (RAK) College of Medical Sciences, Ras Al Khaimah, ARE
| | - Apurva Patel
- Research, Gujarat Medical Education & Research Society (GMERS) Medical College, Gotri, Vadodara, IND
| | - Deepanjali Vedantam
- Internal Medicine, Kamineni Academy of Medical Sciences and Research Center, Hyderabad, IND
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55
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Ogilvie AR, Schlussel Y, Sukumar D, Meng L, Shapses SA. Higher protein intake during caloric restriction improves diet quality and attenuates loss of lean body mass. Obesity (Silver Spring) 2022; 30:1411-1419. [PMID: 35538903 PMCID: PMC9256776 DOI: 10.1002/oby.23428] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 02/22/2022] [Accepted: 03/03/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Higher protein intake during weight loss is associated with better health outcomes, but whether this is because of improved diet quality is not known. The purpose of this study was to examine how the change in self-selected protein intake during caloric restriction (CR) alters diet quality and lean body mass (LBM). METHODS In this analysis of pooled data from multiple weight loss trials, 207 adults with overweight or obesity were examined before and during 6 months of CR (approximately 10 food records/person). Body composition was measured by dual-energy x-ray absorptiometry. Diet quality was assessed using the Healthy Eating Index in 2 groups: lower (LP) and higher (HP) protein intake. RESULTS Participants (mean [SD], 54 [11] years; 29 [4] kg/m2 ) lost 5.0% (5.4%) of weight. Protein intake was 79 (9) g/d (1.0 [0.2] g/kg/d) and 58 (6) g/d (0.8 [0.1] g/kg/d) in the HP and LP groups, respectively (p < 0.05), and there was an attenuated LBM (kilograms) loss in the HP (-0.6% [1.5%]) compared with the LP (-1.2% [1.4%]) group (p < 0.01). The increased Healthy Eating Index score in the HP compared with the LP group was attributed to greater total protein and green vegetable intake and reduced refined grain and added-sugar intake (p < 0.05). CONCLUSIONS Increasing dietary protein during CR improves diet quality and may be another reason for reduced LBM, but it requires further study.
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Affiliation(s)
- Anna R Ogilvie
- Department of Nutritional Sciences, Institute of Food, Nutrition, and Health, Rutgers University, New Brunswick, New Jersey, USA
| | - Yvette Schlussel
- Department of Nutritional Sciences, Institute of Food, Nutrition, and Health, Rutgers University, New Brunswick, New Jersey, USA
| | - Deeptha Sukumar
- Department of Nutrition Sciences, Drexel University, Philadelphia, Pennsylvania, USA
| | - Lingqiong Meng
- Department of Nutritional Sciences, Institute of Food, Nutrition, and Health, Rutgers University, New Brunswick, New Jersey, USA
| | - Sue A Shapses
- Department of Nutritional Sciences, Institute of Food, Nutrition, and Health, Rutgers University, New Brunswick, New Jersey, USA
- Department of Medicine, Rutgers-Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
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56
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Glynn EL, Fleming SA, Edwards CG, Wilson MJ, Evans M, Leidy HJ. Consuming a Protein and Fiber-Based Supplement Preload Promotes Weight Loss and Alters Metabolic Markers in Overweight Adults in a 12-Week, Randomized, Double-Blind, Placebo-Controlled Trial. J Nutr 2022; 152:1415-1425. [PMID: 35212740 PMCID: PMC9178960 DOI: 10.1093/jn/nxac038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/03/2022] [Accepted: 02/14/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Higher protein and fiber diets promote weight management and metabolic health. OBJECTIVES This study aimed to determine if greater weight loss and positive changes in metabolic outcomes could be achieved with twice-daily consumption of a high-protein and fiber-based multi-ingredient nutritional shake (HPF) compared with an isocaloric low-protein, lower fiber-based placebo (LPF). METHODS Study procedures were conducted by an independent research organization under clinicaltrials.gov registration NCT03057873. Healthy overweight and obese adults [n = 206; BMI (kg/m2): 27-35; 70% female] were randomly assigned to HPF or LPF. All participants were prescribed an energy-restricted diet (500 kcal/d less than energy needs) and consumed a HPF (17 g protein, 6 g fiber) or LPF (1 g protein, 3 g fiber) shake 30 min before breakfast and lunch for 12 wk. Primary outcomes included body weight and total body fat percentage. Blood samples were collected at days (D) 0, 28, 56, and 84 for secondary analyses related to metabolic markers of health. RESULTS Although weight loss occurred in both groups, HPF had greater weight loss at D84 compared with LPF (-3.3 kg vs. -1.8 kg, P < 0.05). Percentage body fat decreased in both groups (HPF: -1.33%, LPF: -1.09%; P < 0.001) with no differences between groups. Serum total cholesterol, LDL cholesterol, and oxidized LDL decreased between -5.1% to -8.3%, whereas adiponectin increased over time in both groups; these changes occurred to a greater extent in HPF compared with LPF (all P < 0.05). CONCLUSIONS A multi-ingredient HPF nutritional supplement shake consumed as a preload before breakfast and lunch positively influenced weight management and metabolic outcomes in overweight adults compared with an LPF placebo. These findings suggest that specific nutrient factors (i.e., potentially including protein, fiber, and bioactive content) other than calorie reduction alone influence the success of a weight-loss regimen. This trial was registered at www.clinicaltrials.gov as NCT03057873.
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Affiliation(s)
- Erin L Glynn
- Scientific Affairs, Beachbody, LLC, El Segundo, CA, USA
- Research and Development, Beachbody, LLC, El Segundo, CA, USA
| | | | | | | | | | - Heather J Leidy
- Department of Nutritional Sciences, University of Texas at Austin, Austin, TX, USA
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Dietary protein and multiple health outcomes: An umbrella review of systematic reviews and meta-analyses of observational studies. Clin Nutr 2022; 41:1759-1769. [DOI: 10.1016/j.clnu.2022.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 04/05/2022] [Accepted: 06/03/2022] [Indexed: 11/24/2022]
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Gut Microbial Stability is Associated with Greater Endurance Performance in Athletes Undertaking Dietary Periodization. mSystems 2022; 7:e0012922. [PMID: 35579384 PMCID: PMC9238380 DOI: 10.1128/msystems.00129-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Dietary manipulation with high-protein or high-carbohydrate content are frequently employed during elite athletic training, aiming to enhance athletic performance. Such interventions are likely to impact upon gut microbial content. This study explored the impact of acute high-protein or high-carbohydrate diets on measured endurance performance and associated gut microbial community changes. In a cohort of well-matched, highly trained endurance runners, we measured performance outcomes, as well as gut bacterial, viral (FVP), and bacteriophage (IV) communities in a double-blind, repeated-measures design randomized control trial (RCT) to explore the impact of dietary intervention with either high-protein or high-carbohydrate content. High-dietary carbohydrate improved time-trial performance by +6.5% (P < 0.03) and was associated with expansion of Ruminococcus and Collinsella bacterial spp. Conversely, high dietary protein led to a reduction in performance by −23.3% (P = 0.001). This impact was accompanied by significantly reduced diversity (IV: P = 0.04) and altered composition (IV and FVP: P = 0.02) of the gut phageome as well as enrichment of both free and inducible Sk1virus and Leuconostoc bacterial populations. Greatest performance during dietary modification was observed in participants with less substantial shifts in community composition. Gut microbial stability during acute dietary periodization was associated with greater athletic performance in this highly trained, well-matched cohort. Athletes, and those supporting them, should be mindful of the potential consequences of dietary manipulation on gut flora and implications for performance, and periodize appropriately. IMPORTANCE Dietary periodization is employed to improve endurance exercise performance but may impact on gut microbial communities. Bacteriophage are implicated in bacterial cell homeostasis and have been identified as biomarkers of disequilibrium in the gut ecosystem possibly brought about through dietary periodization. We find high-carbohydrate and high-protein diets to have opposing impacts on endurance performance in highly trained athlete populations. Reduced performance is linked with disturbance of microbial stasis in the gut. We demonstrate bacteriophage communities are the most sensitive component of the gut microbiota to increased gut stress following dietary manipulation. Athletes undertaking dietary periodization should be aware of potential negative impacts of drastic changes to dietary composition on gut microbial stasis and, in turn, endurance performance.
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Dai J, Lov J, Martin-Arrowsmith PW, Gritsas A, Churchward-Venne TA. The acute effects of insect vs. beef-derived protein on postprandial plasma aminoacidemia, appetite hormones, appetite sensations, and energy intake in healthy young men. Eur J Clin Nutr 2022; 76:1548-1556. [PMID: 35538144 DOI: 10.1038/s41430-022-01157-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND/OBJECTIVES The purpose of this study was to evaluate the acute effects of ingesting beef- and insect-derived protein on postprandial plasma amino acid and appetite hormone concentrations, appetite sensations, and ad libitum energy intake. SUBJECTS/METHODS In a randomized, double-blind, crossover study, 20 young men (23 (SD: 4) y) completed two trials during which arterialized blood samples and VAS questionnaires were collected at baseline, and over 300-min after ingestion of beverages with similar energy and macronutrient content containing 25 g beef- or insect-derived (cricket) protein. Blood samples were analyzed for plasma amino acid and appetite hormone concentrations, while VAS questionnaires were applied to assess appetite sensations. After each trial, an ad libitum meal was immediately provided to assess energy intake. RESULTS Adjusted mean postprandial incremental area under the curve (iAUC) was greater for cricket vs. beef-derived protein for plasma leucine, branched-chain amino acid, and essential amino acid concentrations (all P < 0.0001). Adjusted mean postprandial iAUC for hunger was lower following beef (-3030 (SE: 860)) vs. cricket-derived (-1197 (SE: 525)) protein (Difference: -1833 (95% CI: -3358, -308); P = 0.02), but was not different for other appetite sensations or appetite hormones (all P > 0.05). Adjusted mean ad libitum energy intake was 4072 (SE: 292) and 4408 (SE: 316) kJ following beef- and cricket-derived protein (Difference: -336 (95% CI: -992, 320); P = 0.30). CONCLUSION Acute ingestion of cricket and beef-derived protein leads to differences in postprandial plasma amino acid concentrations, but elicits similar effects on appetite hormones, appetite sensations, and ad libitum energy intake in young men.
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Affiliation(s)
- Jiaying Dai
- Department of Kinesiology and Physical Education, McGill University, Montreal, QC, Canada
| | - Jamie Lov
- Department of Kinesiology and Physical Education, McGill University, Montreal, QC, Canada
| | | | - Ari Gritsas
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Tyler A Churchward-Venne
- Department of Kinesiology and Physical Education, McGill University, Montreal, QC, Canada. .,Research Institute of the McGill University Health Centre, Montreal, QC, Canada. .,Division of Geriatric Medicine, McGill University, Montreal, QC, Canada.
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Stier C, Koschker AC, Kim M, Stier R, Chiappetta S, Stein J. Fast-track rescue weight reduction therapy to achieve rapid technical operability for emergency bariatric surgery in patients with life-threatening inoperable severe obesity – A proof of concept study. Clin Nutr ESPEN 2022; 50:238-246. [PMID: 35871930 DOI: 10.1016/j.clnesp.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 05/14/2022] [Accepted: 05/17/2022] [Indexed: 10/18/2022]
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Bosch G, Gilbert M, Beerda B. Properties of Foods That Impact Appetite Regulation in Cats. FRONTIERS IN ANIMAL SCIENCE 2022. [DOI: 10.3389/fanim.2022.873924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Overweight and obesity are common in global pet cat populations which makes it important to understand how properties of food affect appetite (food motivation). In four experiments, we studied this by using a model of operant conditioning for assessing appetite in which cats could press a lever for food rewards. There was no effect of protein status on motivation for protein, when evaluated in a cross-over design with cats receiving low protein (LP) or high protein (HP) foods for 14 days. Cats obtained similar numbers of HP and LP rewards, irrespective of whether their daily food was HP or LP (mixed-effects model, P = 0.550 for food × reward, P = 0.151 for reward). High dietary protein reduced food motivation when we regressed protein levels in 12 commercial foods (12.0 to 27.4 g crude protein/MJ metabolizable energy; P = 0.022) fed for 2 days and tested at 5 h postprandially on the third day whereas fiber levels were without effect (3.8 to 17.8 g non-starch polysaccharides/MJ; P = 0.992). Dietary fiber may reduce appetite depending on its physicochemical properties and we tested the effect of a gelling fiber (alginate), viscous fiber (psyllium) and a fermentable fiber (inulin). Cats received test foods as well as control foods for 3 days and were tested on the third day at 3 h (alginate), 5 h (psyllium) or 8 h (inulin) postprandially. Enriching the food with alginate (P = 0.379) or psyllium (P = 0.153) did not affect the number of rewards obtained, but the feeding of the inulin-enriched food did make the cats obtain fewer rewards than when they received the control food (P = 0.001). Finally, cooking or grinding of dietary meat increased the number of rewards obtained by cats, on day 3 at 3 h postprandial, without evidence for additive effects of these treatments (P = 0.014 for grinding × cooking). This study shows that dietary content of protein or fiber, and the grinding or cooking of meat, all affect appetite in cats as expected, though some predicted effects remained undetected and clearly details regarding food properties matter. These and future findings can guide the designing of foods that promote satiety and prevent over-eating in meal-fed cats.
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Effects of a Low-carbohydrate/High-protein Diet on Gut Microbiome Composition in Insulin Resistant Individuals with Chronic Spinal Cord Injury: Preliminary Results from a Randomized Controlled Trial. Arch Phys Med Rehabil 2022; 103:1269-1278. [DOI: 10.1016/j.apmr.2022.03.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 11/18/2022]
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Whittaker J, Harris M. Low-carbohydrate diets and men's cortisol and testosterone: Systematic review and meta-analysis. Nutr Health 2022; 28:543-554. [PMID: 35254136 DOI: 10.1177/02601060221083079] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background: Low-carbohydrate diets may have endocrine effects, although individual studies are conflicting. Therefore, a review was conducted on the effects of low- versus high-carbohydrate diets on men's testosterone and cortisol. Methods: The review was registered on PROSPERO (CRD42021255957). The inclusion criteria were: intervention study, healthy adult males, and low-carbohydrate diet: ≤35% carbohydrate. Eight databases were searched from conception to May 2021. Cochrane's risk of bias tool was used for quality assessment. Random-effects, meta-analyses using standardized mean differences and 95% confidence intervals, were performed with Review Manager. Subgroup analyses were conducted for diet duration, protein intake, and exercise duration. Results: Twenty-seven studies were included, with a total of 309 participants. Short-term (<3 weeks), low- versus high-carbohydrate diets moderately increased resting cortisol (0.41 [0.16, 0.66], p < 0.01). Whereas, long-term (≥3 weeks), low-carbohydrate diets had no consistent effect on resting cortisol. Low- versus high-carbohydrate diets resulted in much higher post-exercise cortisol, after long-duration exercise (≥20 min): 0 h (0.78 [0.47, 1.1], p < 0.01), 1 h (0.81 [0.31, 1.31], p < 0.01), and 2 h (0.82 [0.33, 1.3], p < 0.01). Moderate-protein (<35%), low-carbohydrate diets had no consistent effect on resting total testosterone, however high-protein (≥35%), low-carbohydrate diets greatly decreased resting (-1.08 [-1.67, -0.48], p < 0.01) and post-exercise total testosterone (-1.01 [-2, -0.01] p = 0.05). Conclusions: Resting and post-exercise cortisol increase during the first 3 weeks of a low-carbohydrate diet. Afterwards, resting cortisol appears to return to baseline, whilst post-exercise cortisol remains elevated. High-protein diets cause a large decrease in resting total testosterone (∼5.23 nmol/L).
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Affiliation(s)
- Joseph Whittaker
- The School of Allied Health and Community, 8709University of Worcester, Worcester, UK
| | - Miranda Harris
- The School of Allied Health and Community, 8709University of Worcester, Worcester, UK
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Mthembu SXH, Mazibuko-Mbeje SE, Ziqubu K, Nyawo TA, Obonye N, Nyambuya TM, Nkambule BB, Silvestri S, Tiano L, Muller CJF, Dludla PV. Impact of physical exercise and caloric restriction in patients with type 2 diabetes: Skeletal muscle insulin resistance and mitochondrial dysfunction as ideal therapeutic targets. Life Sci 2022; 297:120467. [PMID: 35271881 DOI: 10.1016/j.lfs.2022.120467] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/04/2022] [Accepted: 03/04/2022] [Indexed: 01/01/2023]
Abstract
Skeletal muscle insulin resistance and mitochondrial dysfunction are some of the major pathological defects implicated in the development of type 2 diabetes (T2D). Therefore, it has become necessary to understand how common interventions such as physical exercise and caloric restriction affect metabolic function, including physiological processes that implicate skeletal muscle dysfunction within a state of T2D. This review critically discusses evidence on the impact of physical exercise and caloric restriction on markers of insulin resistance and mitochondrial dysfunction within the skeletal muscle of patients with T2D or related metabolic complications. Importantly, relevant information from clinical studies was acquired through a systematic approach targeting major electronic databases and search engines such as PubMed, Google Scholar, and Cochrane library. The reported evidence suggests that interventions like physical exercise and caloric restriction, within a duration of approximately 2 to 4 months, can improve insulin sensitivity, in part by targeting the phosphoinositide 3-kinases/protein kinase B pathway in patients with T2D. Furthermore, both physical exercise and caloric restriction can effectively modulate markers related to improved mitochondrial function and dynamics. This was consistent with an improved modulation of mitochondrial oxidative capacity and reduced production of reactive oxygen species in patients with T2D or related metabolic complications. However, such conclusions are based on limited evidence, additional clinical trials are required to better understand these interventions on pathological mechanisms of T2D and related abnormalities.
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Affiliation(s)
- Sinenhlanhla X H Mthembu
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa; Department of Biochemistry, North-West University, Mafikeng Campus, Mmabatho 2735, South Africa
| | | | - Khanyisani Ziqubu
- Department of Biochemistry, North-West University, Mafikeng Campus, Mmabatho 2735, South Africa
| | - Thembeka A Nyawo
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa; Centre for Cardiometabolic Research Africa (CARMA), Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg 7505, South Africa
| | - Nnini Obonye
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa; Centre for Cardiometabolic Research Africa (CARMA), Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg 7505, South Africa
| | - Tawanda M Nyambuya
- Department of Health Sciences, Faculty of Health and Applied Sciences, Namibia University of Science and Technology, Windhoek 9000, Namibia
| | - Bongani B Nkambule
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu Natal, Durban 4000, South Africa
| | - Sonia Silvestri
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona 60131, Italy
| | - Luca Tiano
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona 60131, Italy
| | - Christo J F Muller
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa; Centre for Cardiometabolic Research Africa (CARMA), Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg 7505, South Africa; Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa 3880, South Africa
| | - Phiwayinkosi V Dludla
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa.
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Avirineni BS, Singh A, Zapata RC, Stevens RD, Phillips CD, Chelikani PK. Diets Containing Egg or Whey Protein and Inulin Fiber Improve Energy Balance and Modulate Gut Microbiota in Exercising Obese Rats. Mol Nutr Food Res 2022; 66:e2100653. [PMID: 35108450 DOI: 10.1002/mnfr.202100653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 12/11/2021] [Indexed: 11/11/2022]
Abstract
SCOPE Dietary protein, prebiotic fiber and exercise individually have been shown to aid in weight loss; however less is known of their combined effects on energy balance. We determined the effects of diets high in protein and fiber, with exercise, on energy balance, hormones and gut microbiota. METHODS AND RESULTS Obese male rats were fed high-fat diets with high protein and fiber contents from egg protein and cellulose, egg protein and inulin, whey protein and cellulose, or whey protein and inulin, together with treadmill exercise. We found that inulin enriched diets decreased energy intake and respiratory quotient, increased energy expenditure, and upregulated transcripts for cholecystokinin (CCK), peptide YY and proglucagon in distal gut. Notably, CCK1-receptor blockade attenuated the hypophagic effects of diets and in particular whey-inulin diet, and β-adrenergic blockade reduced energy expenditure across all diets. Egg-cellulose, egg-inulin and whey-inulin diets decreased weight gain, adiposity, hepatic lipidosis and decreased lipogenic transcripts, improved glycemic control and up-regulated hepatic glucose metabolism transcripts, and decreased plasma insulin and leptin. Importantly, diet was linked to altered gut microbial composition and plasma metabolomics, and a subset of predicted metagenome pathways and plasma metabolites significantly correlated, with plasma butyric acid the most strongly associated to metagenome function. CONCLUSION Combination of dietary egg or whey protein with inulin and exercise improved energy balance, glucose metabolism, upregulated anorectic hormones, and selectively modulated gut microbiota and plasma metabolites. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Bharath S Avirineni
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, AB, T2N 4N1, Canada
| | - Arashdeep Singh
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, AB, T2N 4N1, Canada.,Present Address: Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, 32610, USA
| | - Rizaldy C Zapata
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, AB, T2N 4N1, Canada.,Division of Endocrinology and Metabolism, School of Medicine, University of California San Diego, La Jolla, 92093, USA
| | - Richard D Stevens
- Department of Natural Resources Management, Texas Tech University, Lubbock, TX, 79409, USA
| | - Caleb D Phillips
- Department of Biological Sciences, Texas Tech University, Lubbock, TX, 79409, USA
| | - Prasanth K Chelikani
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, AB, T2N 4N1, Canada.,School of Veterinary Medicine, Texas Tech University, Amarillo, TX, 79106, USA.,Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, 79409, USA
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66
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Lim JJ, Liu Y, Lu LW, Barnett D, Sequeira IR, Poppitt SD. Does a Higher Protein Diet Promote Satiety and Weight Loss Independent of Carbohydrate Content? An 8-Week Low-Energy Diet (LED) Intervention. Nutrients 2022; 14:nu14030538. [PMID: 35276894 PMCID: PMC8838013 DOI: 10.3390/nu14030538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/22/2022] [Accepted: 01/25/2022] [Indexed: 11/18/2022] Open
Abstract
Both higher protein (HP) and lower carbohydrate (LC) diets may promote satiety and enhance body weight (BW) loss. This study investigated whether HP can promote these outcomes independent of carbohydrate (CHO) content. 121 women with obesity (BW: 95.1 ± 13.0 kg, BMI: 35.4 ± 3.9 kg/m2) were randomised to either HP (1.2 g/kg BW) or normal protein (NP, 0.8 g/kg BW) diets, in combination with either LC (28 en%) or normal CHO (NC, 40 en%) diets. A low-energy diet partial diet replacement (LEDpdr) regime was used for 8 weeks, where participants consumed fixed-energy meal replacements plus one ad libitum meal daily. Four-day dietary records showed that daily energy intake (EI) was similar between groups (p = 0.744), but the difference in protein and CHO between groups was lower than expected. Following multiple imputation (completion rate 77%), decrease in mean BW, fat mass (FM) and fat-free mass (FFM) at Week 8 in all was 7.5 ± 0.7 kg (p < 0.001), 5.7 ± 0.5 kg (p < 0.001), and 1.4 ± 0.7 kg (p = 0.054) respectively, but with no significant difference between diet groups. LC (CHO×Week, p < 0.05), but not HP, significantly promoted postprandial satiety during a preload challenge. Improvements in blood biomarkers were unrelated to LEDpdr macronutrient composition. In conclusion, HP did not promote satiety and BW loss compared to NP LEDpdr, irrespective of CHO content.
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Affiliation(s)
- Jia Jiet Lim
- Human Nutrition Unit, School of Biological Sciences, University of Auckland, Auckland 1024, New Zealand; (Y.L.); (L.W.L.); (I.R.S.); (S.D.P.)
- Riddet Institute, Palmerston North 4474, New Zealand
- Correspondence:
| | - Yutong Liu
- Human Nutrition Unit, School of Biological Sciences, University of Auckland, Auckland 1024, New Zealand; (Y.L.); (L.W.L.); (I.R.S.); (S.D.P.)
- Department of Medicine, University of Auckland, Auckland 1010, New Zealand
| | - Louise Weiwei Lu
- Human Nutrition Unit, School of Biological Sciences, University of Auckland, Auckland 1024, New Zealand; (Y.L.); (L.W.L.); (I.R.S.); (S.D.P.)
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand
| | - Daniel Barnett
- Department of Statistics, University of Auckland, Auckland 1010, New Zealand;
| | - Ivana R. Sequeira
- Human Nutrition Unit, School of Biological Sciences, University of Auckland, Auckland 1024, New Zealand; (Y.L.); (L.W.L.); (I.R.S.); (S.D.P.)
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand
| | - Sally D. Poppitt
- Human Nutrition Unit, School of Biological Sciences, University of Auckland, Auckland 1024, New Zealand; (Y.L.); (L.W.L.); (I.R.S.); (S.D.P.)
- Riddet Institute, Palmerston North 4474, New Zealand
- Department of Medicine, University of Auckland, Auckland 1010, New Zealand
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand
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67
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The Role of Bovine and Non-Bovine Milk in Cardiometabolic Health: Should We Raise the "Baa"? Nutrients 2022; 14:nu14020290. [PMID: 35057470 PMCID: PMC8780791 DOI: 10.3390/nu14020290] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/01/2022] [Accepted: 01/06/2022] [Indexed: 12/14/2022] Open
Abstract
Although causality is yet to be confirmed, a considerable volume of research has explored the relationships between cow milk consumption, type II diabetes, and cardiovascular disease. Contrastingly, it has not been comprehensively examined whether milk of non-bovine origin can provide cardiometabolic protection. This narrative review outlines the marked differences in macronutrient composition, particularly protein and lipid content, and discusses how whole milk product (and individual milk ingredients) from different species could impact cardiometabolic health. There is some data, although primarily from compositional analyses, animal studies, and acute clinical trials, that non-bovine milk (notably sheep and goat milk) could be a viable substitute to cow milk for the maintenance, or enhancement, of cardiometabolic health. With a high content of medium-chain triglycerides, conjugated linoleic acid, leucine, and essential minerals, sheep milk could assist in the prevention of metabolic-related disorders. Similarly, albeit with a lower content of such functional compounds relative to sheep milk, goat and buffalo milk could be plausible counterparts to cow milk. However, the evidence required to generate nutritional recommendations for ‘non-bovine milk’ is currently lacking. Longer-term randomised controlled trials must assess how the bioactive ingredients of different species’ milks collectively influence biomarkers of, and subsequently incidence of, cardiometabolic health.
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Oosterwijk MM, Groothof D, Navis G, Bakker SJL, Laverman GD. High-Normal Protein Intake Is Not Associated With Faster Renal Function Deterioration in Patients With Type 2 Diabetes: A Prospective Analysis in the DIALECT Cohort. Diabetes Care 2022; 45:35-41. [PMID: 34711636 DOI: 10.2337/dc21-1211] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 09/27/2021] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To study the prospective association between dietary protein intake and renal function deterioration in patients with type 2 diabetes (T2D). RESEARCH DESIGN AND METHODS Prospective analyses were performed in data of 382 patients of the Diabetes and Lifestyle Cohort Twente (DIALECT) study. Dietary protein intake was determined by the Maroni equation from 24-h urinary urea excretion. Renal function deterioration was defined as need for renal replacement therapy or a persistent increase of ≥50% in serum creatinine. Cox proportional hazards models were used to calculate hazard ratios (HRs) for the association between dietary protein intake and renal function deterioration. Threshold levels represent the dietary protein intake at which there was a significantly increased and reduced hazard of renal function deterioration. RESULTS Renal function deterioration occurred in 53 patients (14%), with a median follow-up duration of 6 (interquartile range 5-9) years. Mean dietary protein intake was 91 ± 27 g/day (1.22 ± 0.33 g/kg ideal body weight/day). Dietary protein intake was inversely associated with renal function deterioration (HR 0.62 [95% CI 0.44-0.90]). Patients with an intake <92 g/day had an increased hazard for renal function deterioration (HR 1.44 [95% CI 1.00-2.06]), while patients with an intake >163 g/day had a decreased hazard for renal function deterioration (HR 0.42 [95% CI 0.18-1.00]). Regarding dietary protein intake per kilogram body weight, patients with an intake <1.08 g/kg/day had an increased hazard for renal function deterioration (HR 1.63 [95% CI 1.00-2.65]). CONCLUSIONS In patients with T2D, unrestricted dietary protein intake was not associated with an increased hazard of renal function deterioration. Therefore, substituting carbohydrates with dietary protein is not contraindicated as a part of T2D management, although it may have a positive effect on body weight while minimizing loss of muscle mass.
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Affiliation(s)
- Milou M Oosterwijk
- 1Department of Internal Medicine/Nephrology, Ziekenhuis Groep Twente, Almelo, the Netherlands
| | - Dion Groothof
- 2Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Gerjan Navis
- 2Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Stephan J L Bakker
- 2Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Gozewijn D Laverman
- 1Department of Internal Medicine/Nephrology, Ziekenhuis Groep Twente, Almelo, the Netherlands.,3Biomedical Signals and Systems, University of Twente, Enschede, the Netherlands
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Zhou C, Yang S, Zhang Y, Wu Q, Ye Z, Liu M, He P, Zhang Y, Li R, Liu C, Nie J, Qin X. Relations of Variety and Quantity of Dietary Proteins Intake from Different Sources with Mortality Risk: A Nationwide Population-Based Cohort. J Nutr Health Aging 2022; 26:1078-1086. [PMID: 36519771 DOI: 10.1007/s12603-022-1870-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
OBJECTIVES The relations of variety and quantity of dietary proteins intake from different sources with mortality risk were still controversial. We aimed to examine the associations of variety and quantity of different sourced proteins with all-cause mortality risk in adults and older adults. MATERIALS AND METHODS 17,310 participants (mean age was 44.0 [SD: 15.9] years and 51.0% were females) with utilizable data from the China Health and Nutrition Survey were included. Dietary intake was collected using three consecutive 24-h dietary recalls combined with a household food inventory. The variety score of protein sources was defined as the number of proteins consumed at the appropriate level, accounting for both types and quantity of proteins. The primary outcome was all-cause mortality. RESULTS Over a median follow-up of 9.0 years, 1324 (7.6%) death cases were reported. There were reversed J-shaped relationships of percentages energy from total protein, and protein from legume with all-cause mortality; U-shaped relationships of proteins from unprocessed red meat, processed red meat, poultry and whole grain with all-cause mortality; L-shaped relationships of proteins from egg and fish with all-cause mortality; and a reversed L-shaped relationship of protein from refined grain with all-cause mortality (all P values for nonlinearity < 0.001). Moreover, there was a significant inverse association between the variety score of protein sources with overall mortality risk (per score increment, HR, 0.69; 95%CI, 0.66-0.72). CONCLUSIONS Greater variety of proteins with appropriate quantity from different food sources was associated with significantly lower risk of mortality in Chinese adults and older adults.
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Affiliation(s)
- C Zhou
- Jing Nie, M.D or Xianhui Qin, M.D, National Clinical Research Center for Kidney Disease, State Key Laboratory for Organ Failure Research, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China, Emails: or
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Multi-Trajectories of Macronutrient Intake and Their Associations with Obesity among Chinese Adults from 1991 to 2018: A Prospective Study. Nutrients 2021; 14:nu14010013. [PMID: 35010888 PMCID: PMC8746800 DOI: 10.3390/nu14010013] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/16/2021] [Accepted: 12/18/2021] [Indexed: 02/07/2023] Open
Abstract
Studies on macronutrient intake and obesity have been inconclusive. This study examined the associations between multi-trajectories of macronutrients and the risk of obesity in China. We used data from 7914 adults who participated in the China Health and Nutrition Survey at least three times from 1991 to 2018. We collected detailed dietary data by conducting three 24 h dietary recalls and weighing foods and condiments in household inventories. We identified multi-trajectories using group-based multi-trajectory models and examined their associations with the risk of obesity with multiple Cox regression models. We found four multi-trajectories in rural areas: balanced macronutrient intake (BM), moderate protein, increasing low fat, and decreasing high carbohydrate (MP&ILF&DHC); decreasing moderate protein, decreasing high fat, and increasing moderate carbohydrate (DMP&DHF&IMC); increasing moderate protein, increasing high fat, and decreasing low carbohydrate (IMP&IHF&DLC)-35.1%, 21.3%, 20.1%, and 23.5% of our rural participant population, respectively. Compared with the BM trajectory, the hazard ratios of obesity in the DMP&DHF&IMC and the IMP&IHF&DLC groups were 0.50 (95% confidence interval (CI): 0.27-0.95) and 0.48 (95% CI: 0.28-0.83), respectively, in rural participants. Relatively low carbohydrate and high fat intakes with complementary dynamic trends are associated with a lower risk of obesity in rural Chinese adults.
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Raeisi-Dehkordi H, Amiri M, Moghtaderi F, Zimorovat A, Rahmanian M, Mozaffari-Khosravi H, Salehi-Abargouei A. Effects of sesame, canola and sesame-canola oils on body weight and composition in adults with type 2 diabetes mellitus: a randomized, triple-blind, cross-over clinical trial. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:6083-6092. [PMID: 33899246 DOI: 10.1002/jsfa.11265] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/23/2021] [Accepted: 04/25/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Recent investigations have proposed that sesame and canola oils might affect body fat distribution. The present study aimed to examine the effects of sesame, canola and sesame-canola (a blend of sesame and canola oils) oils on body weight and composition in adults with type 2 diabetes mellitus in the context of a randomized, triple-blind, three-way, cross-over clinical trial. RESULTS Eligible participants were randomized to replace their regular dietary oil with sesame oil (SO), canola oil (CO) and sesame-canola oil (SCO) (with 40% SO and 60% CO). Treatment periods lasted 9 weeks and were separated by 4-week wash-out periods. Body weight and composition were measured at the beginning, in the middle and at the end of each intervention phase. In total, 93 participants completed the study. After adjustment for confounders, within-period changes were observed following SO and CO intake for body weight (0.34 ± 0.16 kg and 0.33 ± 0.17 kg) and visceral fat (0.13 ± 0.06% and 0.13 ± 0.05%, P < 0.05), respectively. Body mass index was increased within SO intake (0.13 ± 0.05 kg m-2 , P = 0.031). All of the treatment oils resulted in reduced waist circumference and index of central obesity (P < 0.05). A significant difference in change values was observed for visceral fat between SCO (-0.14 ± 0.07%) and SO (0.12 ± 0.08%) treatment periods in females (P = 0.02). CONCLUSION Sesame and canola oils might lead to a modest favorable body fat redistribution by reducing central adiposity, particularly in females; however, the changes were of little clinical importance. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Hamidreza Raeisi-Dehkordi
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mojgan Amiri
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatemeh Moghtaderi
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Alireza Zimorovat
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Masoud Rahmanian
- Diabetes Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hassan Mozaffari-Khosravi
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Diabetes Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Amin Salehi-Abargouei
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Ouyang Y, Tan T, Song X, Huang F, Zhang B, Ding G, Wang H. Dietary Protein Intake Dynamics in Elderly Chinese from 1991 to 2018. Nutrients 2021; 13:nu13113806. [PMID: 34836062 PMCID: PMC8622550 DOI: 10.3390/nu13113806] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 10/18/2021] [Accepted: 10/22/2021] [Indexed: 01/01/2023] Open
Abstract
Unique rapid urbanization-related changes in China may affect the dietary protein intake of the aging population. We aimed to evaluate trends in dietary protein intake and major food sources of protein and estimate conformity to the dietary reference intakes (DRIs) in the elderly Chinese population. A sample of 10,854 elderly adults aged 60 years or older, drawn from 10 waves of the China Health and Nutrition Survey (CHNS) between 1991 and 2018, was included. Protein intake data were obtained on the basis of 3-day, 24 h dietary recalls. The dietary protein intake among elderly Chinese individuals declined from 63.3 g/day to 57.8 g/day over the 28-year period, with a −0.032 ± 0.0001 g/day change per year (p < 0.05). There was a significant increase in the proportion of subjects with a protein intake level below the estimated averaged requirement (EAR) and a reduction in the proportion of subjects consuming protein above the recommended nutrient intake (RNI) across all population subgroups. Cereals ranked as the major sources of dietary protein, although their contribution to dietary protein gradually decreased as time went on. The contribution from meat steadily rose from 18.2% in 1991 to 28.7% in 2018. The proportion of energy gained from fat increased notably, reaching 34.2% in 2018. The elderly Chinese population experienced a significant reduction in dietary protein intake. Although the transformation of dietary patterns had positive effects on improving protein quality due to increases in animal source food, some elderly Chinese individuals currently face the risk of inadequate dietary protein intake.
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Affiliation(s)
- Yifei Ouyang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China; (Y.O.); (X.S.); (F.H.); (B.Z.); (G.D.)
| | - Tingyi Tan
- School of Human Nutrition, McGill University, Montreal, QC H9X 3V9, Canada;
| | - Xiaoyun Song
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China; (Y.O.); (X.S.); (F.H.); (B.Z.); (G.D.)
| | - Feifei Huang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China; (Y.O.); (X.S.); (F.H.); (B.Z.); (G.D.)
| | - Bing Zhang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China; (Y.O.); (X.S.); (F.H.); (B.Z.); (G.D.)
| | - Gangqiang Ding
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China; (Y.O.); (X.S.); (F.H.); (B.Z.); (G.D.)
| | - Huijun Wang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China; (Y.O.); (X.S.); (F.H.); (B.Z.); (G.D.)
- Correspondence: ; Tel.: +86-10-6623-7089
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Dimauro I, Grazioli E, Antinozzi C, Duranti G, Arminio A, Mancini A, Greco EA, Caporossi D, Parisi A, Di Luigi L. Estrogen-Receptor-Positive Breast Cancer in Postmenopausal Women: The Role of Body Composition and Physical Exercise. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:9834. [PMID: 34574758 PMCID: PMC8467802 DOI: 10.3390/ijerph18189834] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 12/14/2022]
Abstract
Breast cancer (BC) is the most commonly diagnosed cancer among women worldwide and the most common cause of cancer-related death. To date, it is still a challenge to estimate the magnitude of the clinical impact of physical activity (PA) on those parameters producing significative changes in future BC risk and disease progression. However, studies conducted in recent years highlight the role of PA not only as a protective factor for the development of ER+ breast cancer but, more generally, as a useful tool in the management of BC treatment as an adjuvant to traditional therapies. In this review, we focused our attention on data obtained from human studies analyzing, at each level of disease prevention (i.e., primary, secondary, tertiary and quaternary), the positive impact of PA/exercise in ER+ BC, a subtype representing approximately 70% of all BC diagnoses. Moreover, given the importance of estrogen receptors and body composition (i.e., adipose tissue) in this subtype of BC, an overview of their role will also be made throughout this review.
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Affiliation(s)
- Ivan Dimauro
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135 Rome, Italy;
| | - Elisa Grazioli
- Unit of Physical Exercise and Sport Sciences, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135 Rome, Italy; (E.G.); (A.P.)
| | - Cristina Antinozzi
- Unit of Endocrinology, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135 Rome, Italy; (C.A.); (A.A.); (E.A.G.); (L.D.L.)
| | - Guglielmo Duranti
- Unit of Biocheminstry and Molecular Biology, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135 Rome, Italy;
| | - Alessia Arminio
- Unit of Endocrinology, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135 Rome, Italy; (C.A.); (A.A.); (E.A.G.); (L.D.L.)
| | - Annamaria Mancini
- Dipartimento di Scienze Motorie e del Benessere (DISMeB), Università Degli Studi di Napoli “Parthenope”, Via F. Acton, 38, 80133 Naples, Italy;
- CEINGE-Biotecnologie Avanzate s.c.ar.l., Via Gaetano Salvatore 482, 80145 Naples, Italy
| | - Emanuela A. Greco
- Unit of Endocrinology, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135 Rome, Italy; (C.A.); (A.A.); (E.A.G.); (L.D.L.)
- Department of Health Science, University “Magna Graecia” of Catanzaro, Viale Europa, 88100 Catanzaro, Italy
| | - Daniela Caporossi
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135 Rome, Italy;
| | - Attilio Parisi
- Unit of Physical Exercise and Sport Sciences, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135 Rome, Italy; (E.G.); (A.P.)
| | - Luigi Di Luigi
- Unit of Endocrinology, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135 Rome, Italy; (C.A.); (A.A.); (E.A.G.); (L.D.L.)
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Avirineni BS, Singh A, Zapata RC, Phillips CD, Chelikani PK. Dietary whey and egg proteins interact with inulin fiber to modulate energy balance and gut microbiota in obese rats. J Nutr Biochem 2021; 99:108860. [PMID: 34520853 DOI: 10.1016/j.jnutbio.2021.108860] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/10/2021] [Accepted: 08/10/2021] [Indexed: 02/07/2023]
Abstract
Diets supplemented with protein and fiber are well known to reduce food intake and weight gain; however, less is known about the combined effects of protein and prebiotic fiber on energy balance and gut microbiota composition. We compared effects of diets containing high egg or whey protein with cellulose or prebiotic (inulin) fiber on energy balance, gut microbiota, hormones, and metabolites. Male obese rats (n=8/group) were allocated to four diets: Egg albumen+Cellulose (EC), Egg albumen+Inulin (EI), Whey protein+Cellulose (WC), and Whey protein+Inulin (WI). Results revealed that diet-induced hypophagia was transient with EC and prolonged with EI and WI, compared to WC. Importantly, CCK-1 receptor antagonist (Devazepide) attenuated the hypophagic effects of EC, EI, and WI. Further, EC, EI and WI decreased respiratory quotient, energy expenditure, weight and adiposity gains, and improved glycemia, relative to WC. Propranolol (β1-β2-receptor blocker) attenuated diet-induced changes in energy expenditure. Transcript abundance of thermogenic markers in brown adipose tissue, plasma hormones, and metabolites especially acyl-carnitines and glycerophospholipids, were differentially altered by diets. Diet explained 25% of compositional differences in cecal microbiomes, but diets with same fiber type did not differ. Microbiota differing between groups also strongly correlated with gut hormones and metabolites. Species most strongly correlated to a marker for butyrate production were in highest abundance in inulin diets. Together, these findings indicate that inulin enriched diets containing egg or whey protein improved energy balance, decreased adiposity, and modulated gut microbiota and metabolites, with CCK signaling partly mediating the satiety effects of diets.
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Affiliation(s)
- Bharath S Avirineni
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - Arashdeep Singh
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - Rizaldy C Zapata
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - Caleb D Phillips
- Department of Biological Sciences, Texas Tech University, Lubbock, Texas, USA
| | - Prasanth K Chelikani
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada; School of Veterinary Medicine, Texas Tech University, Amarillo, Texas, USA; Department of Nutritional Sciences, College of Human Sciences, Texas Tech University, Lubbock, Texas, USA.
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75
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Manus J, Millette M, Dridi C, Salmieri S, Aguilar Uscanga BR, Lacroix M. Protein quality of a probiotic beverage enriched with pea and rice protein. J Food Sci 2021; 86:3698-3706. [PMID: 34268736 DOI: 10.1111/1750-3841.15838] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/26/2021] [Accepted: 06/01/2021] [Indexed: 12/01/2022]
Abstract
The aim of this study was to evaluate the effect of the fermentation of a probiotic beverage enriched with pea and rice proteins (PRF) on its protein quality. The protein quality was determined as the protein efficiency ratio (PER), net protein ratio (NPR), and the apparent (AD) and the true digestibility (TD) evaluated in vivo. The probiotic beverage was incorporated to a rat diet at a final concentration of 10% protein, for the evaluation of the PER, the NPR, the AD, and the TD. The protein digestibility amino acid score was also calculated. Results showed that the fermentation of beverage enriched with PRF had no effect on the TD but significantly increased the PER and the NPR (P ≤ 0.05) from 1.88 to 2.32 and from 1.66 to 2.30, respectively. Thus, the fermentation increased the protein quality of the PRF probiotic beverage. In addition, to determine if the beverage constitute in a good carrier matrix for the probiotics, the level of alive probiotics in the feces was evaluated and showed a concentration of 7.4 log CFU/g. PRACTICAL APPLICATION: Plant proteins are often of lower quality compared to animal proteins. Lactic acid fermentation of pea and rice protein has allowed to reach the same protein quality as casein. A plant-based fermented beverage with high protein quality and enriched with probiotics was developed.
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Affiliation(s)
- Johanne Manus
- Research Laboratories in Sciences, Applied to Food, Canadian Irradiation Centre, INRS Armand-Frappier, Health and Biotechnology Centre, Institute of Nutrition and Functional Foods, Laval, Québec, Canada
| | - Mathieu Millette
- Bio-K+, a Kerry company, Preclinical Research Division, Laval, Québec, Canada
| | - Chaima Dridi
- Research Laboratories in Sciences, Applied to Food, Canadian Irradiation Centre, INRS Armand-Frappier, Health and Biotechnology Centre, Institute of Nutrition and Functional Foods, Laval, Québec, Canada
| | - Stéphane Salmieri
- Research Laboratories in Sciences, Applied to Food, Canadian Irradiation Centre, INRS Armand-Frappier, Health and Biotechnology Centre, Institute of Nutrition and Functional Foods, Laval, Québec, Canada
| | - Blanca R Aguilar Uscanga
- Research Laboratory of Industrial Microbiology. Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Jalisco, Mexico
| | - Monique Lacroix
- Research Laboratories in Sciences, Applied to Food, Canadian Irradiation Centre, INRS Armand-Frappier, Health and Biotechnology Centre, Institute of Nutrition and Functional Foods, Laval, Québec, Canada
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76
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McCarthy D, Berg A. Weight Loss Strategies and the Risk of Skeletal Muscle Mass Loss. Nutrients 2021; 13:2473. [PMID: 34371981 PMCID: PMC8308821 DOI: 10.3390/nu13072473] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/14/2021] [Accepted: 07/16/2021] [Indexed: 12/18/2022] Open
Abstract
With energy intake restriction and exercise remaining the key diet and lifestyle approaches to weight loss, this is not without potential negative implications for body composition, metabolic health, and quality and quantity of life. Ideally, weight loss should be derived almost exclusively from the fat mass compartment as this is the main driver of metabolic disease, however, several studies have shown that there is an accompanying loss of tissue from the fat-free compartment, especially skeletal muscle. Population groups including post-menopausal women, the elderly, those with metabolic disease and athletes may be particularly at risk of skeletal muscle loss when following a weight management programme. Research studies that have addressed this issue across a range of population groups are reviewed with a focus upon the contribution of resistance and endurance forms of exercise and a higher intake dietary protein above the current guideline of 0.8 g/kg body weight/day. While findings can be contradictory, overall, the consensus appears that fat-free and skeletal muscle masses can be preserved, albeit to varying degrees by including both forms of exercise (but especially resistance forms) in the weight management intervention. Equally, higher intakes of protein can protect loss of these body compartments, acting either separately or synergistically with exercise. Elderly individuals in particular may benefit most from this approach. Thus, the evidence supports the recommendations for intakes of protein above the current guidelines of 0.8 g/kg body weight/d for the healthy elderly population to also be incorporated into the dietary prescription for weight management in this age group.
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Affiliation(s)
- David McCarthy
- Public Health Nutrition Research Group, London Metropolitan University, London N7 8DB, UK
| | - Aloys Berg
- Faculty of Medicine, University of Freiburg, 79117 Freiburg, Germany;
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77
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Watkins JD, Koumanov F, Gonzalez JT. Protein- and Calcium-Mediated GLP-1 Secretion: A Narrative Review. Adv Nutr 2021; 12:2540-2552. [PMID: 34192748 PMCID: PMC8634310 DOI: 10.1093/advances/nmab078] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/31/2021] [Accepted: 05/25/2021] [Indexed: 02/06/2023] Open
Abstract
Glucagon-like peptide 1 (GLP-1) is an incretin hormone produced in the intestine that is secreted in response to nutrient exposure. GLP-1 potentiates glucose-dependent insulin secretion from the pancreatic β cells and promotes satiety. These important actions on glucose metabolism and appetite have led to widespread interest in GLP-1 receptor agonism. Typically, this involves pharmacological GLP-1 mimetics or targeted inhibition of dipeptidyl peptidase-IV, the enzyme responsible for GLP-1 degradation. However, nutritional strategies provide a widely available, cost-effective alternative to pharmacological strategies for enhancing hormone release. Recent advances in nutritional research have implicated the combined ingestion of protein and calcium with enhanced endogenous GLP-1 release, which is likely due to activation of receptors with high affinity and/or sensitivity for amino acids and calcium. Specifically targeting these receptors could enhance gut hormone secretion, thus providing a new therapeutic option. This narrative review provides an overview of the latest research on protein- and calcium-mediated GLP-1 release with an emphasis on human data, and a perspective on potential mechanisms that link potent GLP-1 release to the co-ingestion of protein and calcium. In light of these recent findings, potential future research directions are also presented.
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Affiliation(s)
- Jonathan D Watkins
- Centre for Nutrition, Exercise and Metabolism, Department for Health, University of Bath, Bath, United Kingdom
| | - Françoise Koumanov
- Centre for Nutrition, Exercise and Metabolism, Department for Health, University of Bath, Bath, United Kingdom
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78
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A comparison of dietary quality and nutritional adequacy of popular energy-restricted diets against the Australian Guide to Healthy Eating and the Mediterranean Diet. Br J Nutr 2021; 128:1357-1370. [PMID: 34155964 DOI: 10.1017/s0007114521002282] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
There is limited information regarding the nutrition profile and diet quality of meal plans from currently popular weight loss (WL) diets in Australia. This includes the energy content (kilojoules), the macronutrient distribution and the micronutrient composition. Further, these diets have not been compared with current government guidelines and healthy eating principles (HEP) for nutritional adequacy. Popular diets were identified through grey literature, trending searches and relative popularity in Australia. Meal plans for each diet were analysed using Foodworks Dietary Software to determine food group intake, micronutrient and macronutrient distribution. The results indicated that all popular diets assessed deviated from government recommended HEP such as the Australian Guide to Healthy Eating and the Mediterranean diet. In most cases, both popular diets and the HEP had low intakes of multiple food groups, low intakes of essential micronutrients and a distorted macronutrient distribution. Popular diets may not provide adequate nutrition to meet needs, particularly in the long term and potentially resulting in micronutrient deficiency. When energy restricting for WL, meal plans should be highly individualised in conjunction with a qualified nutrition professional to ensure adequate dietary intake.
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79
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Crudele L, Piccinin E, Moschetta A. Visceral Adiposity and Cancer: Role in Pathogenesis and Prognosis. Nutrients 2021; 13:2101. [PMID: 34205356 PMCID: PMC8234141 DOI: 10.3390/nu13062101] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/14/2021] [Accepted: 06/16/2021] [Indexed: 12/11/2022] Open
Abstract
The prevalence of being overweight and obese has been expanded dramatically in recent years worldwide. Obesity usually occurs when the energetic introit overtakes energy expenditure from metabolic and physical activity, leading to fat accumulation mainly in the visceral depots. Excessive fat accumulation represents a risk factor for many chronic diseases, including cancer. Adiposity, chronic low-grade inflammation, and hyperinsulinemia are essential factors of obesity that also play a crucial role in tumor onset. In recent years, several strategies have been pointed toward boundary fat accumulation, thus limiting the burden of cancer attributable to obesity. While remodeling fat via adipocytes browning seems a tempting prospect, lifestyle interventions still represent the main pathway to prevent cancer and enhance the efficacy of treatments. Specifically, the Mediterranean Diet stands out as one of the best dietary approaches to curtail visceral adiposity and, therefore, cancer risk. In this Review, the close relationship between obesity and cancer has been investigated, highlighting the biological mechanisms at the basis of this link. Finally, strategies to remodel fat, including browning and lifestyle interventions, have been taken into consideration as a major perspective to limit excess body weight and tumor onset.
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Affiliation(s)
- Lucilla Crudele
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (L.C.); (E.P.)
- Department of Biomedical Sciences and Human Oncology, University of Bari “Aldo Moro”, 70124 Bari, Italy
| | - Elena Piccinin
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (L.C.); (E.P.)
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari “Aldo Moro”, 70124 Bari, Italy
| | - Antonio Moschetta
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (L.C.); (E.P.)
- INBB, National Institute for Biostructures and Biosystems, 00136 Rome, Italy
- National Cancer Center, IRCCS Istituto Tumori Giovanni Paolo II, 70124 Bari, Italy
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80
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Yılmaz SK, Eskici G, Mertoǧlu C, Ayaz A. Effect of different protein diets on weight loss, inflammatory markers, and cardiometabolic risk factors in obese women. JOURNAL OF RESEARCH IN MEDICAL SCIENCES : THE OFFICIAL JOURNAL OF ISFAHAN UNIVERSITY OF MEDICAL SCIENCES 2021; 26:28. [PMID: 34345239 PMCID: PMC8305754 DOI: 10.4103/jrms.jrms_611_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/08/2020] [Accepted: 04/05/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Reducing and maintaining body weight has become more important than ever as obesity is becoming increasingly common worldwide. This study was aimed to investigate the effects of diets with different protein contents administered to obese women on anthropometric measurements, inflammatory markers, and cardiometabolic risk factors. MATERIALS AND METHODS This randomized controlled trial was conducted with sixty volunteering obese women aged between 20 and 45 years. The subjects were divided into two groups in equal numbers. The high-protein (HP) group (n = 30) was administered an iso-caloric HP diet (25% protein, 30% fat, and 45% carbohydrate), and the control group (n = 30) an isocaloric low-protein diet (15% protein, 30% fat, and 55% carbohydrate), and both groups were followed up for 8 weeks. The subjects' descriptive data, anthropometric measurements, homeostatic model assessment-insulin resistance (HOMA-IR), lipid profiles, and high-sensitive C-reactive protein (hs-CRP), tumor necrosis factor-alpha (TNF-α), and interleukin-6 (IL-6) levels were analyzed. RESULTS There was no significant difference at baseline (except for low-density lipoprotein cholesterol [LDL-C]), and end-of-study (except for IL-6, systolic blood pressure [SBP], and diastolic blood pressure) values of parameters between the two groups; after adjusted for baseline measurements, a significant difference was observed between the groups for body weight, body mass index, waist circumference, HOMA-IR, LDL-C, hs-CRP, TNF-α, IL-6, and SBP (P = 0.004, P = 0.001, P = 0.003, P = 0.029, P = 0.004, P = 0.016, P = 0.004, P = 0.010, and P = 0.000, respectively) and were greater in the HP group than in the control group (P < 0.05). CONCLUSION The HP diet was effective on improvement in HOMA-IR, SBP, LDL-C, hs-CRP, TNF-α, IL-6, and resulted in body weight loss.
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Affiliation(s)
- Sevil Karahan Yılmaz
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Günay Eskici
- Department of Coaching, Faculty of Sport Science, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Cuma Mertoǧlu
- Department of Clinical Biochemistry, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Aylin Ayaz
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hacettepe University, Ankara, Turkey
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81
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Babygirija R, Lamming DW. The regulation of healthspan and lifespan by dietary amino acids. TRANSLATIONAL MEDICINE OF AGING 2021; 5:17-30. [PMID: 34263088 PMCID: PMC8277109 DOI: 10.1016/j.tma.2021.05.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
As a key macronutrient and source of essential macromolecules, dietary protein plays a significant role in health. For many years, protein-rich diets have been recommended as healthy due to the satiety-inducing and muscle-building effects of protein, as well as the ability of protein calories to displace allegedly unhealthy calories from fats and carbohydrates. However, clinical studies find that consumption of dietary protein is associated with an increased risk of multiple diseases, especially diabetes, while studies in rodents have demonstrated that protein restriction can promote metabolic health and even lifespan. Emerging evidence suggests that the effects of dietary protein on health and longevity are not mediated simply by protein quantity but are instead mediated by protein quality - the specific amino acid composition of the diet. Here, we discuss how dietary protein and specific amino acids including methionine, the branched chain amino acids (leucine, isoleucine, and valine), tryptophan and glycine regulate metabolic health, healthspan, and aging, with attention to the specific molecular mechanisms that may participate in these effects. Finally, we discuss the potential applicability of these findings to promoting healthy aging in humans.
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Affiliation(s)
- Reji Babygirija
- William S. Middleton Memorial Veterans Hospital, Madison, WI
- Department of Medicine, University of Wisconsin-Madison, Madison, WI
- Graduate Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI, USA
| | - Dudley W. Lamming
- William S. Middleton Memorial Veterans Hospital, Madison, WI
- Department of Medicine, University of Wisconsin-Madison, Madison, WI
- Graduate Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI, USA
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82
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de Hoogh IM, Winters BL, Nieman KM, Bijlsma S, Krone T, van den Broek TJ, Anderson BD, Caspers MPM, Anthony JC, Wopereis S. A Novel Personalized Systems Nutrition Program Improves Dietary Patterns, Lifestyle Behaviors and Health-Related Outcomes: Results from the Habit Study. Nutrients 2021; 13:1763. [PMID: 34067248 PMCID: PMC8224682 DOI: 10.3390/nu13061763] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/14/2021] [Accepted: 05/17/2021] [Indexed: 12/21/2022] Open
Abstract
Personalized nutrition may be more effective in changing lifestyle behaviors compared to population-based guidelines. This single-arm exploratory study evaluated the impact of a 10-week personalized systems nutrition (PSN) program on lifestyle behavior and health outcomes. Healthy men and women (n = 82) completed the trial. Individuals were grouped into seven diet types, for which phenotypic, genotypic and behavioral data were used to generate personalized recommendations. Behavior change guidance was also provided. The intervention reduced the intake of calories (-256.2 kcal; p < 0.0001), carbohydrates (-22.1 g; p < 0.0039), sugar (-13.0 g; p < 0.0001), total fat (-17.3 g; p < 0.0001), saturated fat (-5.9 g; p = 0.0003) and PUFA (-2.5 g; p = 0.0065). Additionally, BMI (-0.6 kg/m2; p < 0.0001), body fat (-1.2%; p = 0.0192) and hip circumference (-5.8 cm; p < 0.0001) were decreased after the intervention. In the subgroup with the lowest phenotypic flexibility, a measure of the body's ability to adapt to environmental stressors, LDL (-0.44 mmol/L; p = 0.002) and total cholesterol (-0.49 mmol/L; p < 0.0001) were reduced after the intervention. This study shows that a PSN program in a workforce improves lifestyle habits and reduces body weight, BMI and other health-related outcomes. Health improvement was most pronounced in the compromised phenotypic flexibility subgroup, which indicates that a PSN program may be effective in targeting behavior change in health-compromised target groups.
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Affiliation(s)
- Iris M. de Hoogh
- TNO, Netherlands Organization for Applied Scientific Research, 3704 HE Zeist, The Netherlands; (I.M.d.H.); (S.B.); (T.K.); (T.J.v.d.B.); (M.P.M.C.)
| | | | | | - Sabina Bijlsma
- TNO, Netherlands Organization for Applied Scientific Research, 3704 HE Zeist, The Netherlands; (I.M.d.H.); (S.B.); (T.K.); (T.J.v.d.B.); (M.P.M.C.)
| | - Tanja Krone
- TNO, Netherlands Organization for Applied Scientific Research, 3704 HE Zeist, The Netherlands; (I.M.d.H.); (S.B.); (T.K.); (T.J.v.d.B.); (M.P.M.C.)
| | - Tim J. van den Broek
- TNO, Netherlands Organization for Applied Scientific Research, 3704 HE Zeist, The Netherlands; (I.M.d.H.); (S.B.); (T.K.); (T.J.v.d.B.); (M.P.M.C.)
| | | | - Martien P. M. Caspers
- TNO, Netherlands Organization for Applied Scientific Research, 3704 HE Zeist, The Netherlands; (I.M.d.H.); (S.B.); (T.K.); (T.J.v.d.B.); (M.P.M.C.)
| | - Joshua C. Anthony
- Habit, Oakland, CA 94607, USA;
- Campbell Soup Company, Camden, NJ 08103, USA
| | - Suzan Wopereis
- TNO, Netherlands Organization for Applied Scientific Research, 3704 HE Zeist, The Netherlands; (I.M.d.H.); (S.B.); (T.K.); (T.J.v.d.B.); (M.P.M.C.)
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83
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Sánchez-Pimienta TG, Quezada-Sánchez AD, Rivera JA, Shamah T, Batis C. Nutrient composition of mealtimes and its association with the energy intake of subsequent meals among Mexican adults. Appetite 2021; 164:105288. [PMID: 33964396 DOI: 10.1016/j.appet.2021.105288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 04/15/2021] [Accepted: 04/24/2021] [Indexed: 11/16/2022]
Abstract
The composition of the diet influences energy intake by affecting satiety. Macronutrients have a hierarchical effect on satiety, where proteins have the greatest influence, followed by carbohydrates and fats. Alcohol consumption has also shown an effect on increasing energy intake in subsequent meals. Most of this evidence comes from studies under controlled conditions but, it is not clear if effects of diet composition are maintained or counteracted by other determinants of EI in real life. In this paper, we described the diet composition by mealtime in a sample of free-living Mexican adults, as well as evaluated its association with the energy intake in subsequent meals between- and within-subjects. We used information from a national cross-sectional survey of the urban Mexican population. Dietary information was collected by an automated multiple-pass 24-h recall and all participants had information from three non-consecutive days (two weekdays and one weekend). We analyzed information from adults from 20 years and older and used mixed-effects hybrid models that isolate the intra-subject, from the between-subject associations using a substitution approach. We found that alcohol and added sugars were associated with an increased EI between- and within-subjects, while fiber was associated with a decreased EI in subsequent meals within-subjects. Between-subjects, the higher intake of proteins was associated with a decrease in EI, whereas carbohydrates were associated with an increased EI in subsequent meals. We concluded that the composition of the diet at one mealtime predicted EI in subsequent meals of free-living subjects. Understanding the effects of diet composition could guide strategies to reduce EI and obesity prevention.
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Affiliation(s)
- Tania G Sánchez-Pimienta
- Center for Nutrition and Health Research, National Institute of Public Health, Avenida Universidad 655 Colonia Santa María Ahuacatitlán, Cuernavaca, CP, 62100, Mexico
| | - Amado D Quezada-Sánchez
- Center for Evaluation and Surveys Research, National Institute of Public Health, Cuernavaca, Mexico
| | - Juan A Rivera
- General Director, National Institute of Public Health, Cuernavaca, Mexico
| | - Teresa Shamah
- Center for Evaluation and Surveys Research, National Institute of Public Health, Cuernavaca, Mexico
| | - Carolina Batis
- CONACYT-Center for Nutrition and Health Research, National Institute of Public Health, 7a Cerrada de Fray Pedro de Gante No. 50, Col. Sección XVI, Tlalpan, Mexico City, CP, 14080, Mexico.
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84
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Wild LE, Alderete TL, Naik NC, Patterson WB, Berger PK, Jones RB, Plows JF, Goran MI. Specific amino acids but not total protein attenuate postpartum weight gain among Hispanic women from Southern California. Food Sci Nutr 2021; 9:1842-1850. [PMID: 33841803 PMCID: PMC8020954 DOI: 10.1002/fsn3.2085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 12/17/2022] Open
Abstract
There is a high prevalence of obesity and type 2 diabetes in the United States, particularly among Hispanic women, which may be partly explained by failure to lose gestational weight during the postpartum period. Previous work indicates that protein and amino acids may protect against weight gain; therefore, this study examined the impact of dietary protein and amino acid intake on changes in postpartum weight and the percent of women meeting the Estimated Average Requirement (EAR) for these dietary variables among Hispanic women from the Southern California Mother's Milk Study (n = 99). Multivariable linear regression analysis was used to examine the associations between protein and amino acid intake with change in weight after adjusting for maternal age, height, and energy intake. Women's weight increased from prepregnancy to 1-month and 6-months postpartum (71.1 ± 14.6 vs. 73.1 ± 13.1 vs. 74.5 ± 14.6 kg, p < .0001). Although dietary protein was not associated with weight change (β = -1.09; p = .13), phenylalanine (β = -1.46; p = .04), tryptophan (β = -1.71; p = .009), valine (β = -1.34; p = .04), isoleucine (β = -1.26; p = .045), and cysteine (β = -1.52; p = .02) intake were inversely associated with weight change. Additionally, fewer women met the EAR values for cysteine (11.1%), phenylalanine (60.6%), and methionine (69.7%), whereas most women met the EAR values for tryptophan (92.9%), valine (96.0%), and isoleucine (94.9%). Study results indicate that several essential and conditionally essential amino acids were associated with postpartum weight loss, with a significant portion of women not meeting recommended intake levels for some of these amino acids. These results highlight the importance of postpartum maternal diet as a potential modifiable risk factor.
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Affiliation(s)
- Laura E. Wild
- Department of Integrative PhysiologyUniversity of Colorado BoulderBoulderCOUSA
| | - Tanya L. Alderete
- Department of Integrative PhysiologyUniversity of Colorado BoulderBoulderCOUSA
| | - Noopur C. Naik
- Department of Integrative PhysiologyUniversity of Colorado BoulderBoulderCOUSA
| | | | - Paige K. Berger
- Department of PediatricsThe Saban Research InstituteChildren's Hospital Los AngelesUniversity of Southern CaliforniaLos AngelesCAUSA
| | - Roshonda B. Jones
- Department of PediatricsThe Saban Research InstituteChildren's Hospital Los AngelesUniversity of Southern CaliforniaLos AngelesCAUSA
| | - Jasmine F. Plows
- Department of PediatricsThe Saban Research InstituteChildren's Hospital Los AngelesUniversity of Southern CaliforniaLos AngelesCAUSA
| | - Michael I. Goran
- Department of PediatricsThe Saban Research InstituteChildren's Hospital Los AngelesUniversity of Southern CaliforniaLos AngelesCAUSA
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85
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Sijbesma JWA, van Waarde A, Stegger L, Dierckx RAJO, Boersma HH, Slart RHJA. PET/CT Imaging and Physiology of Mice on High Protein Diet. Int J Mol Sci 2021; 22:ijms22063236. [PMID: 33810147 PMCID: PMC8004865 DOI: 10.3390/ijms22063236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/08/2021] [Accepted: 03/16/2021] [Indexed: 11/30/2022] Open
Abstract
Background: High protein (HP) diets have been proposed to reduce body weight in humans. The diets are known to alter energy metabolism, which can affect the quality of [18F]FDG PET heart images. In this preclinical study, we therefore explore the impact of a prolonged HP diet on myocardial [18F]FDG uptake. Methods: C57BL/6J (Black six (Bl6)) and apolipoprotein E-deficient (apoE−/−) mice were fed chow, a HP diet, or a low protein (LP) diet for 12 weeks. At baseline and after treatment, the animals were injected with 33.0 MBq of [18F]FDG and a 30 min PET/CT scan was made. Myocardial volume and [18F]FDG uptake were quantified using PET and the % of body fat was calculated from CT. Results: Myocardial [18F]FDG uptake was similar for all diets at the follow-up scan but an increase between baseline and follow-up scans was noticed in the LP groups. Myocardial volume was significantly smaller in the C57BL HP group compared to the other Bl6 groups. Body weight increased less in the two HP groups compared to the chow and LP groups. Body fat percentage was significantly higher in the LP groups. This effect was stronger in C57BL mice (28.7%) compared to apoE−/− mice (15.1%). Conclusions: Myocardial uptake of [18F]FDG in mice is not affected by increased protein intake but [18F]FDG uptake increases when the amount of protein is lowered. A lower body weight and percentage of body fat were noticed when applying a HP diet.
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Affiliation(s)
- Jürgen W. A. Sijbesma
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (A.v.W.); (R.A.J.O.D.); (H.H.B.); (R.H.J.A.S.)
- Correspondence:
| | - Aren van Waarde
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (A.v.W.); (R.A.J.O.D.); (H.H.B.); (R.H.J.A.S.)
| | - Lars Stegger
- Department of Nuclear Medicine, University Hospital, University of Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany;
| | - Rudi A. J. O. Dierckx
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (A.v.W.); (R.A.J.O.D.); (H.H.B.); (R.H.J.A.S.)
| | - Hendrikus H. Boersma
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (A.v.W.); (R.A.J.O.D.); (H.H.B.); (R.H.J.A.S.)
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands
| | - Riemer H. J. A. Slart
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (A.v.W.); (R.A.J.O.D.); (H.H.B.); (R.H.J.A.S.)
- Department of Biomedical Photonic Imaging, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, 7522NB Enschede, The Netherlands
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86
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Narasaki Y, Okuda Y, Moore LW, You AS, Tantisattamo E, Inrig JK, Miyagi T, Nakata T, Kovesdy CP, Nguyen DV, Kalantar-Zadeh K, Rhee CM. Dietary protein intake, kidney function, and survival in a nationally representative cohort. Am J Clin Nutr 2021; 114:303-313. [PMID: 33742197 PMCID: PMC8246621 DOI: 10.1093/ajcn/nqab011] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 01/08/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND High-protein diets (e.g., Paleo, Atkins, South Beach, ketogenic) have gained popularity as a means to promote weight loss and avoid excess carbohydrate consumption. Yet in chronic kidney disease (CKD) patients, evidence suggests low dietary protein intake (DPI) leads to attenuation of kidney function decline, although concerns remain for risk of protein-energy wasting. OBJECTIVES To examine associations of DPI with mortality in a nationally representative cohort of US adults, stratified by kidney function. METHODS We examined the association between daily DPI scaled to actual body weight (ABW), ascertained by 24-h dietary recall, with all-cause mortality among 27,604 continuous NHANES adult participants (1999-2010), stratified according to impaired versus normal kidney function (estimated glomerular filtration rates <60 compared with ≥60 ml/min/1.72 m2, respectively), using multivariable Cox models. We also examined the relation between high biological value (HBV) protein consumption with mortality. RESULTS In participants with impaired kidney function, a high DPI of ≥1.4 g/kg ABW/day was associated with higher mortality, while lower DPI levels were not associated with mortality (reference, 0.6 to <1.0 g/kg ABW/day): the adjusted HRs (aHRs) were 1.09 (95% CI: 0.90, 1.32), 1.03 (95% CI: 0.82, 1.29), and 1.37 (95% CI: 1.02, 1.85) for DPI <0.6, 1.0 to <1.4, and ≥1.4 g/kg ABW/day, respectively. Yet in participants with normal kidney function, a low DPI of <0.6 g/kg ABW/day was associated with higher mortality, whereas higher DPI levels were not associated with death: the aHRs were 1.18 (95% CI: 1.04, 1.34), 0.92 (95% CI: 0.81, 1.04), and 0.99 (95% CI: 0.85, 1.16) for DPI <0.6, 1.0 to <1.4, and ≥1.4 g/kg ABW/day, respectively. The highest 2 tertiles of HBV consumption were associated with higher mortality in participants with impaired kidney function. CONCLUSIONS Among participants with impaired kidney function, a higher DPI and greater HBV consumption were associated with higher mortality, whereas a lower DPI was associated with higher mortality in those with normal kidney function. Further studies are needed to elucidate the specific pathways between higher DPI and mortality in CKD.
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Affiliation(s)
- Yoko Narasaki
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine, Orange, CA, USA,Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan,Japan Society for the Promotion of Science, Tokyo, Japan
| | - Yusuke Okuda
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine, Orange, CA, USA,Department of Pediatrics, Kitasato University School of Medicine, Kanagawa, Japan
| | - Linda W Moore
- Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
| | - Amy S You
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine, Orange, CA, USA
| | - Ekamol Tantisattamo
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine, Orange, CA, USA
| | - Jula K Inrig
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine, Orange, CA, USA,IQVIA, Therapeutic Science and Strategy Unit, San Diego, CA, USA
| | - Tsuyoshi Miyagi
- Department of Cardiovascular Medicine, Nephrology and Neurology, University of the Ryukyus School of Medicine, Okinawa, Japan
| | - Tracy Nakata
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine, Orange, CA, USA
| | - Csaba P Kovesdy
- Division of Nephrology, University of Tennessee Health Science Center, Memphis, TN, USA,Nephrology Section, Memphis Veterans Affairs Medical Center, Memphis, VA, USA
| | - Danh V Nguyen
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine, Orange, CA, USA
| | - Kamyar Kalantar-Zadeh
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine, Orange, CA, USA
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87
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Martínez-Gómez MG, Roberts BM. Metabolic Adaptations to Weight Loss: A Brief Review. J Strength Cond Res 2021; 36:2970-2981. [PMID: 33677461 DOI: 10.1519/jsc.0000000000003991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Martínez-Gómez, MG and Roberts, BM. Metabolic adaptations to weight loss: A brief review. J Strength Cond Res XX(X): 000-000, 2021-As the scientific literature has continuously shown, body mass loss attempts do not always follow a linear fashion nor always go as expected even when the intervention is calculated with precise tools. One of the main reasons why this tends to happen relies on our body's biological drive to regain the body mass we lose to survive. This phenomenon has been referred to as "metabolic adaptation" many times in the literature and plays a very relevant role in the management of obesity and human weight loss. This review will provide insights into some of the theoretical models for the etiology of metabolic adaptation as well as a quick look into the physiological and endocrine mechanisms that underlie it. Nutritional strategies and dietetic tools are thus necessary to confront these so-called adaptations to body mass loss. Among some of these strategies, we can highlight increasing protein needs, opting for high-fiber foods or programming-controlled diet refeeds, and diet breaks over a large body mass loss phase. Outside the nutritional aspects, it might be wise to increase the physical activity and thus the energy flux of an individual when possible to maintain diet-induced body mass loss in the long term. This review will examine these protocols and their viability in the context of adherence and sustainability for the individual toward successful body mass loss.
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Affiliation(s)
- Mario G Martínez-Gómez
- CarloSportNutrition, Spain; and University of Alabama at Birmingham, Birmingham, Alabama
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88
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Bertoni L, Valentini R, Zattarin A, Belligoli A, Bettini S, Vettor R, Foletto M, Spinella P, Busetto L. Assessment of Protein Intake in the First Three Months after Sleeve Gastrectomy in Patients with Severe Obesity. Nutrients 2021; 13:771. [PMID: 33673465 PMCID: PMC7997257 DOI: 10.3390/nu13030771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 12/12/2022] Open
Abstract
An adequate protein intake prevents the loss of fat-free mass during weight loss. Laparoscopic sleeve gastrectomy (SG) jeopardizes protein intake due to post-operative dietary restriction and intolerance to protein-rich foods. The purpose of this study is to evaluate protein intake in the first three months after SG. We evaluated, 1 month and 3 months after surgery, 47 consecutive patients treated with SG. Protein intake, both from foods and from protein supplementation, was assessed through a weekly dietary record. Patients consumed 30.0 ± 10.2 g of protein/day on average from foods in the first month, with a significant increase to 34.9 ± 4.8 g of protein/day in the third month (p = 0.003). The use of protein supplementation significantly increased total protein intake to 42.3 ± 15.9 g protein/day (p < 0.001) in the first month and to 39.6 ± 14.2 g of protein/day (p = 0.002) in the third one. Compliance with supplement consumption was 63.8% in the first month and only 21.3% in the third month. In conclusion, both one and three months after SG, protein intake from foods was not sufficient. The use of modular supplements seems to have a significant impact on protein intake, but nevertheless it remains lower than recommended.
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Affiliation(s)
- Lucrezia Bertoni
- Department of Medicine, University of Padova, 35128 Padova, Italy; (L.B.); (R.V.); (A.Z.); (A.B.); (S.B.); (R.V.); (P.S.)
- Center for the Study and the Integrated Management of Obesity, Padova University Hospital, 35128 Padova, Italy;
| | - Romina Valentini
- Department of Medicine, University of Padova, 35128 Padova, Italy; (L.B.); (R.V.); (A.Z.); (A.B.); (S.B.); (R.V.); (P.S.)
| | - Alessandra Zattarin
- Department of Medicine, University of Padova, 35128 Padova, Italy; (L.B.); (R.V.); (A.Z.); (A.B.); (S.B.); (R.V.); (P.S.)
- Center for the Study and the Integrated Management of Obesity, Padova University Hospital, 35128 Padova, Italy;
| | - Anna Belligoli
- Department of Medicine, University of Padova, 35128 Padova, Italy; (L.B.); (R.V.); (A.Z.); (A.B.); (S.B.); (R.V.); (P.S.)
- Center for the Study and the Integrated Management of Obesity, Padova University Hospital, 35128 Padova, Italy;
| | - Silvia Bettini
- Department of Medicine, University of Padova, 35128 Padova, Italy; (L.B.); (R.V.); (A.Z.); (A.B.); (S.B.); (R.V.); (P.S.)
- Center for the Study and the Integrated Management of Obesity, Padova University Hospital, 35128 Padova, Italy;
| | - Roberto Vettor
- Department of Medicine, University of Padova, 35128 Padova, Italy; (L.B.); (R.V.); (A.Z.); (A.B.); (S.B.); (R.V.); (P.S.)
- Center for the Study and the Integrated Management of Obesity, Padova University Hospital, 35128 Padova, Italy;
| | - Mirto Foletto
- Center for the Study and the Integrated Management of Obesity, Padova University Hospital, 35128 Padova, Italy;
| | - Paolo Spinella
- Department of Medicine, University of Padova, 35128 Padova, Italy; (L.B.); (R.V.); (A.Z.); (A.B.); (S.B.); (R.V.); (P.S.)
| | - Luca Busetto
- Department of Medicine, University of Padova, 35128 Padova, Italy; (L.B.); (R.V.); (A.Z.); (A.B.); (S.B.); (R.V.); (P.S.)
- Center for the Study and the Integrated Management of Obesity, Padova University Hospital, 35128 Padova, Italy;
- Clinica Medica 3, Azienda Ospedaliera di Padova, Via Giustiniani 2, 35128 Padova, Italy
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89
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Nabrdalik K, Krzyżak K, Hajzler W, Drożdż K, Kwiendacz H, Gumprecht J, Lip GYH. Fat, Sugar or Gut Microbiota in Reducing Cardiometabolic Risk: Does Diet Type Really Matter? Nutrients 2021; 13:639. [PMID: 33669342 PMCID: PMC7920316 DOI: 10.3390/nu13020639] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/05/2021] [Accepted: 02/10/2021] [Indexed: 12/12/2022] Open
Abstract
The incidence of cardiometabolic diseases, such as obesity, diabetes, and cardiovascular diseases, is constantly rising. Successful lifestyle changes may limit their incidence, which is why researchers focus on the role of nutrition in this context. The outcomes of studies carried out in past decades have influenced dietary guidelines, which primarily recommend reducing saturated fat as a therapeutic approach for cardiovascular disease prevention, while limiting the role of sugar due to its harmful effects. On the other hand, a low-carbohydrate diet (LCD) as a method of treatment remains controversial. A number of studies on the effect of LCDs on patients with type 2 diabetes mellitus proved that it is a safe and effective method of dietary management. As for the risk of cardiovascular diseases, the source of carbohydrates and fats corresponds with the mortality rate and protective effect of plant-derived components. Additionally, some recent studies have focused on the gut microbiota in relation to cardiometabolic diseases and diet as one of the leading factors affecting microbiota composition. Unfortunately, there is still no precise answer to the question of which a single nutrient plays the most important role in reducing cardiometabolic risk, and this review article presents the current state of the knowledge in this field.
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Affiliation(s)
- Katarzyna Nabrdalik
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool L14 3PE, UK;
- Department of Internal Medicine, Diabetology and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland; (K.D.); (H.K.); (J.G.)
| | - Katarzyna Krzyżak
- Students’ Scientific Association by the Department of Internal Medicine, Diabetology and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland; (K.K.); (W.H.)
| | - Weronika Hajzler
- Students’ Scientific Association by the Department of Internal Medicine, Diabetology and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland; (K.K.); (W.H.)
| | - Karolina Drożdż
- Department of Internal Medicine, Diabetology and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland; (K.D.); (H.K.); (J.G.)
| | - Hanna Kwiendacz
- Department of Internal Medicine, Diabetology and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland; (K.D.); (H.K.); (J.G.)
| | - Janusz Gumprecht
- Department of Internal Medicine, Diabetology and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland; (K.D.); (H.K.); (J.G.)
| | - Gregory Y. H. Lip
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool L14 3PE, UK;
- Department of Internal Medicine, Diabetology and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland; (K.D.); (H.K.); (J.G.)
- Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, 9100 Aalborg, Denmark
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90
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Oliveira CLP, Boulé NG, Sharma AM, Elliott SA, Siervo M, Ghosh S, Berg A, Prado CM. A high-protein total diet replacement increases energy expenditure and leads to negative fat balance in healthy, normal-weight adults. Am J Clin Nutr 2021; 113:476-487. [PMID: 33247306 PMCID: PMC7851826 DOI: 10.1093/ajcn/nqaa283] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 09/15/2020] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND High-protein diets and total diet replacements are becoming increasingly popular for weight loss; however, further research is needed to elucidate their impact on the mechanisms involved in weight regulation. OBJECTIVE The aim of this inpatient metabolic balance study was to compare the impact of a high-protein total diet replacement (HP-TDR) versus a control diet (CON) on select components of energy metabolism in healthy adults of both sexes. METHODS The acute intervention was a randomized, controlled, crossover design with participants allocated to 2 isocaloric arms: 1) HP-TDR: 35% carbohydrate, 40% protein, and 25% fat achieved through a nutritional supplement; 2) CON: 55% carbohydrate, 15% protein, and 30% fat. Participants received the prescribed diets for 32 h while inside a whole-body calorimetry unit (WBCU). The first dietary intervention randomly offered in the WBCU was designed to maintain energy balance and the second matched what was offered during the first stay. Energy expenditure, macronutrient oxidation rates and balances, and metabolic blood markers were assessed. Body composition was measured at baseline using DXA. RESULTS Forty-three healthy, normal-weight adults (19 females and 24 males) were included. Compared with the CON diet, the HP-TDR produced higher total energy expenditure [(EE) 81 ± 82 kcal/d, P <0.001], protein and fat oxidation rates (38 ± 34 g/d, P <0.001; 8 ± 20 g/d, P = 0.013, respectively), and a lower carbohydrate oxidation rate (-38 ± 43 g/d, P <0.001). Moreover, a HP-TDR led to decreased energy (-112 ± 85 kcal/d; P <0.001), fat (-22 ± 20 g/d; P <0.001), and carbohydrate balances (-69 ± 44 g/d; P <0.001), and increased protein balance (90 ± 32 g/d; P <0.001). CONCLUSIONS Our primary findings were that a HP-TDR led to higher total EE, increased fat oxidation, and negative fat balance. These results suggest that a HP-TDR may promote fat loss compared with a conventional isocaloric diet. These trials were registered at clinicaltrials.gov as NCT02811276 and NCT03565510.
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Affiliation(s)
- Camila L P Oliveira
- Human Nutrition Research Unit, Department of Agricultural, Food, & Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
- Alberta Diabetes Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Normand G Boulé
- Alberta Diabetes Institute, University of Alberta, Edmonton, Alberta, Canada
- Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, Alberta, Canada
| | - Arya M Sharma
- Division of Endocrinology & Metabolism, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Sarah A Elliott
- Human Nutrition Research Unit, Department of Agricultural, Food, & Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
- Alberta Research Centre for Health Evidence, University of Alberta, Edmonton, Alberta, Canada
| | - Mario Siervo
- School of Life Sciences, Division of Physiology, Pharmacology and Neuroscience, University of Nottingham, Nottingham, United Kingdom
| | - Sunita Ghosh
- Department of Medical Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Aloys Berg
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Carla M Prado
- Human Nutrition Research Unit, Department of Agricultural, Food, & Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
- Alberta Diabetes Institute, University of Alberta, Edmonton, Alberta, Canada
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91
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Hall KD, Guo J, Courville AB, Boring J, Brychta R, Chen KY, Darcey V, Forde CG, Gharib AM, Gallagher I, Howard R, Joseph PV, Milley L, Ouwerkerk R, Raisinger K, Rozga I, Schick A, Stagliano M, Torres S, Walter M, Walter P, Yang S, Chung ST. Effect of a plant-based, low-fat diet versus an animal-based, ketogenic diet on ad libitum energy intake. Nat Med 2021; 27:344-353. [PMID: 33479499 DOI: 10.1038/s41591-020-01209-1] [Citation(s) in RCA: 102] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 12/10/2020] [Indexed: 01/29/2023]
Abstract
The carbohydrate-insulin model of obesity posits that high-carbohydrate diets lead to excess insulin secretion, thereby promoting fat accumulation and increasing energy intake. Thus, low-carbohydrate diets are predicted to reduce ad libitum energy intake as compared to low-fat, high-carbohydrate diets. To test this hypothesis, 20 adults aged 29.9 ± 1.4 (mean ± s.e.m.) years with body mass index of 27.8 ± 1.3 kg m-2 were admitted as inpatients to the National Institutes of Health Clinical Center and randomized to consume ad libitum either a minimally processed, plant-based, low-fat diet (10.3% fat, 75.2% carbohydrate) with high glycemic load (85 g 1,000 kcal-1) or a minimally processed, animal-based, ketogenic, low-carbohydrate diet (75.8% fat, 10.0% carbohydrate) with low glycemic load (6 g 1,000 kcal-1) for 2 weeks followed immediately by the alternate diet for 2 weeks. One participant withdrew due to hypoglycemia during the low-carbohydrate diet. The primary outcomes compared mean daily ad libitum energy intake between each 2-week diet period as well as between the final week of each diet. We found that the low-fat diet led to 689 ± 73 kcal d-1 less energy intake than the low-carbohydrate diet over 2 weeks (P < 0.0001) and 544 ± 68 kcal d-1 less over the final week (P < 0.0001). Therefore, the predictions of the carbohydrate-insulin model were inconsistent with our observations. This study was registered on ClinicalTrials.gov as NCT03878108 .
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Affiliation(s)
- Kevin D Hall
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA.
| | - Juen Guo
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Amber B Courville
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - James Boring
- National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Robert Brychta
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Kong Y Chen
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Valerie Darcey
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Ciaran G Forde
- Singapore Institute for Food and Biotechnology Innovation, Singapore, Singapore
| | - Ahmed M Gharib
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Isabelle Gallagher
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Rebecca Howard
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Paule V Joseph
- National Institute of Nursing Research, Bethesda, MD, USA.,National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Lauren Milley
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Ronald Ouwerkerk
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | | | - Irene Rozga
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Alex Schick
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Michael Stagliano
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Stephan Torres
- National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Mary Walter
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Peter Walter
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Shanna Yang
- National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Stephanie T Chung
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
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Composition of Amino Acids in Foodstuffs for Humans and Animals. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1332:189-210. [PMID: 34251645 DOI: 10.1007/978-3-030-74180-8_11] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Amino acids (AAs) are the building blocks of proteins that have both structural and metabolic functions in humans and other animals. In mammals, birds, fish, and crustaceans, proteinogenic AAs are alanine, arginine, asparagine, aspartate, cysteine, glutamate, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, and valine. All animals can synthesize de novo alanine, asparagine, aspartate, glutamate, glutamine, glycine, proline, and serine, whereas most mammals (including humans and pigs) can synthesize de novo arginine. Results of extensive research over the past three decades have shown that humans and other animals have dietary requirements for AAs that are synthesizable de novo in animal cells. Recent advances in analytical methods have allowed us to determine all proteinogenic AAs in foods consumed by humans, livestock, poultry, fish, and crustaceans. Both plant- and animal-sourced foods contain high amounts of glutamate, glutamine, aspartate, asparagine, and branched-chain AAs. Cysteine, glycine, lysine, methionine, proline, threonine, and tryptophan generally occur in low amounts in plant products but are enriched in animal products. In addition, taurine and creatine (essential for the integrity and function of tissues) are absent from plants but are abundant in meat and present in all animal-sourced foods. A combination of plant- and animal products is desirable for the healthy diets of humans and omnivorous animals. Furthermore, animal-sourced feedstuffs can be included in the diets of farm and companion animals to cost-effectively improve their growth performance, feed efficiency, and productivity, while helping to sustain the global animal agriculture (including aquaculture).
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93
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Jadczak AD, Visvanathan R, Barnard R, Luscombe-Marsh N. A Randomized Controlled Pilot Exercise and Protein Effectiveness Supplementation Study (EXPRESS) on Reducing Frailty Risk in Community-Dwelling Older People. J Nutr Gerontol Geriatr 2021; 40:26-45. [PMID: 33691612 DOI: 10.1080/21551197.2021.1886222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
This pilot study aimed to examine the feasibility and effectiveness of a 6-months multi-component exercise program combined with twice daily consumption of either rice (RicePro) or whey-based (WheyPro) protein supplements (2 × 20 g of protein) on gait speed, grip strength and physical performance in community-dwelling pre-frail and frail older adults. Secondary outcomes included: frailty score, muscle mass, quality of life, nutritional intake, cognitive performance, depression and physical activity levels. A total of 70 participants (mean age 73.34 ± 6.85 years) were randomly allocated to either RicePro (n = 36) or WheyPro (n = 34). No adverse events were reported in regards to the exercise, however, several gastrointestinal symptoms were noted with the whey protein causing two-fold more symptoms compared to the rice protein. No differences were found between the groups (p > 0.05), except the total consumed energy (kJ) (p = 0.014) and fat (g) (p = 0.012) which was significantly lower in WheyPro. The results indicate that the quality of protein may not be as important as long as a sufficient amount is consumed.
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Affiliation(s)
- Agathe Daria Jadczak
- National Health and Medical Research Council Centre of Research Excellence Frailty and Healthy Ageing, University of Adelaide, Adelaide, Australia
- Adelaide Geriatrics Training and Research with Aged Care (G-TRAC) Centre, Discipline of Medicine, Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - Renuka Visvanathan
- National Health and Medical Research Council Centre of Research Excellence Frailty and Healthy Ageing, University of Adelaide, Adelaide, Australia
- Adelaide Geriatrics Training and Research with Aged Care (G-TRAC) Centre, Discipline of Medicine, Adelaide Medical School, University of Adelaide, Adelaide, Australia
- Aged and Extended Care Services, The Queen Elizabeth Hospital, Central Adelaide Local Health Network, Adelaide, Australia
| | - Robert Barnard
- Centre for Physical Activity in Ageing (CPAA), Central Adelaide Local Health Network, Adelaide, Australia
| | - Natalie Luscombe-Marsh
- Health and Biosecurity, Commonwealth Scientific Industrial Research Organisation (CSIRO), Adelaide, Australia
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94
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Barrea L, Caprio M, Tuccinardi D, Moriconi E, Di Renzo L, Muscogiuri G, Colao A, Savastano S. Could ketogenic diet "starve" cancer? Emerging evidence. Crit Rev Food Sci Nutr 2020; 62:1800-1821. [PMID: 33274644 DOI: 10.1080/10408398.2020.1847030] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cancer cells (CCs) predominantly use aerobic glycolysis (Warburg effect) for their metabolism. This important characteristic of CCs represents a potential metabolic pathway to be targeted in the context of tumor treatment. Being this mechanism related to nutrient oxidation, dietary manipulation has been hypothesized as an important strategy during tumor treatment. Ketogenic diet (KD) is a dietary pattern characterized by high fat intake, moderate-to-low protein consumption, and very-low-carbohydrate intake (<50 g), which in cancer setting may target CCs metabolism, potentially influencing both tumor treatment and prognosis. Several mechanisms, far beyond the originally proposed inhibition of glucose/insulin signaling, can underpin the effectiveness of KD in cancer management, ranging from oxidative stress, mitochondrial metabolism, and inflammation. The role of a qualified Nutritionist is essential to reduce and manage the short and long-term complications of this dietary therapy, which must be personalized to the individual patient for the planning of tailored KD protocol in cancer patients. In the present review, we summarize the proposed antitumor mechanisms of KD, the application of KD in cancer patients with obesity and cachexia, and the preclinical and clinical evidence on KD therapy in cancer.
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Affiliation(s)
- Luigi Barrea
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O.), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Medical School of Naples, Naples, Italy
| | - Massimiliano Caprio
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Rome, Italy.,Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, Rome, Italy
| | - Dario Tuccinardi
- Unit of Endocrinology and Diabetes, Department of Medicine, Campus Bio-Medico University of Rome, Rome, Italy
| | - Eleonora Moriconi
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Rome, Italy
| | - Laura Di Renzo
- Section of Clinical Nutrition and Nutrigenomic, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Giovanna Muscogiuri
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O.), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Medical School of Naples, Naples, Italy
| | - Annamaria Colao
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O.), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Medical School of Naples, Naples, Italy.,Cattedra Unesco "Educazione alla salute e allo sviluppo sostenibile", University Federico II, Naples, Italy
| | - Silvia Savastano
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O.), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Medical School of Naples, Naples, Italy
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95
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Abstract
High-protein meals and foods are promoted for their beneficial effects on satiety, weight loss and glucose homeostasis. However, the mechanisms involved and the long-term benefits of such diets are still debated. We here review how the characterisation of intestinal gluconeogenesis (IGN) sheds new light on the mechanisms by which protein diets exert their beneficial effects on health. The small intestine is the third organ (in addition to the liver and kidney) contributing to endogenous glucose production via gluconeogenesis. The particularity of glucose produced by the intestine is that it is detected in the portal vein and initiates a nervous signal to the hypothalamic nuclei regulating energy homeostasis. In this context, we demonstrated that protein diets initiate their satiety effects indirectly via IGN and portal glucose sensing. This induction results in the activation of brain areas involved in the regulation of food intake. The μ-opioid-antagonistic properties of protein digests, exerted in the portal vein, are a key link between IGN induction and protein-enriched diet in the control of satiety. From our results, IGN can be proposed as a mandatory link between nutrient sensing and the regulation of whole-body homeostasis. The use of specific mouse models targeting IGN should allow us to identify several metabolic functions that could be controlled by protein diets. This will lead to the characterisation of the mechanisms by which protein diets improve whole-body homeostasis. These data could be the basis of novel nutritional strategies targeting the serious metabolic consequences of both obesity and diabetes.
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96
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Dietary Protein to Carbohydrate Ratio and Incidence of Metabolic Syndrome in Korean Adults Based on a Long-Term Prospective Community-Based Cohort. Nutrients 2020; 12:nu12113274. [PMID: 33114605 PMCID: PMC7693766 DOI: 10.3390/nu12113274] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/23/2020] [Accepted: 10/23/2020] [Indexed: 12/25/2022] Open
Abstract
Interest in high protein diets has recently been increasing for reduction of weight or management of cardiometabolic risks. However, studies on high protein, low carbohydrate diet in Asians are limited. This study aimed to estimate whether the dietary ratio of protein (%) to carbohydrate (%) from total energy intake (p/c ratio) is associated with the risk of metabolic syndrome (MS) and its components in Korean adults using a long-term prospective cohort. A total of 6335 participants from the Korean Genome and Epidemiology Study, aged between 40 and 69 years, with no previous diagnosis of MS, cardiovascular diseases, or cancer at baseline (2001–2002) were followed until 2013. Dietary intake was measured using a validated semiquantitative food-frequency questionnaire. MS components were measured at baseline and every 2 years. During a mean of 7.7 years of follow up, 1198 (36.1%) men and 1169 (38.8%) women developed MS. The multivariate adjusted hazard ratio (HR) of incident MS was 1.43 (95% confidence interval, 1.09–1.89) for the highest compared lowest quintile of p/c ratio in men. When evaluating each component of MS, higher dietary p/c ratio was associated with an increased risk of high triglyceride and fasting glucose in men (HR for fifth vs. first quintile, 1.39 and 1.41 in Model 3, respectively). However, we observed no associations with incident MS and its components and dietary p/c ratio in women. In conclusion, we found that high dietary p/c ratio was associated with an increased risk of MS and its components (i.e., increased triglycerides and fasting glucose) in men. Our study suggested that even if the absolute amount of protein intake is not large, an increased p/c ratio may increase the risk of metabolic diseases.
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97
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Protein metabolism and related body function: mechanistic approaches and health consequences. Proc Nutr Soc 2020; 80:243-251. [PMID: 33050961 DOI: 10.1017/s0029665120007880] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The development and maintenance of body composition and functions require an adequate protein intake with a continuous supply of amino acids (AA) to tissues. Body pool and AA cellular concentrations are tightly controlled and maintained through AA supply (dietary intake, recycled from proteolysis and de novo synthesis), AA disposal (protein synthesis and other AA-derived molecules) and AA losses (deamination and oxidation). Different molecular regulatory pathways are involved in the control of AA sufficiency including the mechanistic target of rapamycin complex 1, the general control non-derepressible 2/activating transcription factor 4 system or the fibroblast growth factor 21. There is a tight control of protein intake, and human subjects and animals appear capable of detecting and adapting food and protein intake and metabolism in face of foods or diets with different protein contents. A severely protein deficient diet induces lean body mass losses and ingestion of sufficient dietary energy and protein is a prerequisite for body protein synthesis and maintenance of muscle, bone and other lean tissues and functions. Maintaining adequate protein intake with age may help preserve muscle mass and strength but there is an ongoing debate as to the optimal protein intake in older adults. The protein synthesis response to protein intake can also be enhanced by prior completion of resistance exercise but this effect could be somewhat reduced in older compared to young individuals and gain in muscle mass and function due to exercise require regular training over an extended period.
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98
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Zhang Y, Chen X, Allison DB, Xun P. Efficacy and safety of a specific commercial high-protein meal-replacement product line in weight management: meta-analysis of randomized controlled trials. Crit Rev Food Sci Nutr 2020; 62:798-809. [PMID: 33938779 DOI: 10.1080/10408398.2020.1829539] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Protein is suggested to be the nutrient providing the most satiety and is frequently used in meal-replacement products to achieve weight loss. Commercial products such as Herbalife high-protein (HP) products have been studied in various clinical trials, but controversy remains regarding their efficacy and safety. METHODS We searched the PubMed, Center for Clinical and Translational Research (CCTR), and Google Scholar databases for randomized controlled trials of Herbalife HP products used as meal replacement (MR) published through July 2019 in peer-reviewed journals. We reviewed changes in efficacy and safety-related outcomes in treatment and control groups, and we estimated the pooled standardized mean difference (SMD) and corresponding 95% confidence intervals (CIs) with a DerSimonian and Laird random-effects method. RESULTS By pooling data from nine identified studies (934 participants: 463 in treatment groups and 471 in control groups), we found that participants who consumed HP products experienced significantly larger decreases in body weight (SMD = -0.24; 95% CI: -0.37 to -0.10), body mass index (SMD = -0.31; 95% CI: -0.50 to -0.11), and fat mass (SMD = -0.37; 95% CI: -0.65 to -0.09) than did individuals consuming control diets. Concerning safety outcomes, the participants in the treatment group had a significantly larger decrease in aspartate aminotransferase (SMD = -0.23; 95% CI: -0.42 to -0.03). There were no significant between-group differences in alanine aminotransferase or creatinine. However, blood urea nitrogen levels increased in both groups, with a significantly larger increase in the treatment group (SMD = 0.53; 95% CI: 0.15 to 0.92). CONCLUSIONS Herbalife HP MR products appear effective and do not evidence significant risk in reducing body weight.
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Affiliation(s)
- Yijia Zhang
- Department of Epidemiology and Biostatistics, School of Public Health - Bloomington, Indiana University, Bloomington, Indiana, USA
| | - Xiwei Chen
- Department of Epidemiology and Biostatistics, School of Public Health - Bloomington, Indiana University, Bloomington, Indiana, USA
| | - David B Allison
- Department of Epidemiology and Biostatistics, School of Public Health - Bloomington, Indiana University, Bloomington, Indiana, USA
| | - Pengcheng Xun
- Department of Epidemiology and Biostatistics, School of Public Health - Bloomington, Indiana University, Bloomington, Indiana, USA
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99
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Bellissimo N, Fansabedian T, Wong VC, Totosy de Zepetnek JO, Brett NR, Schwartz A, Cassin S, Suitor K, Rousseau D. Effect of Increasing the Dietary Protein Content of Breakfast on Subjective Appetite, Short-Term Food Intake and Diet-Induced Thermogenesis in Children. Nutrients 2020; 12:nu12103025. [PMID: 33023221 PMCID: PMC7601774 DOI: 10.3390/nu12103025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/29/2020] [Accepted: 09/30/2020] [Indexed: 12/18/2022] Open
Abstract
Dietary protein affects energy balance by decreasing food intake (FI) and increasing energy expenditure through diet-induced thermogenesis (DIT) in adults. Our objective was to investigate the effects of increasing the dietary protein in an isocaloric breakfast on subjective appetite, FI, blood glucose, and DIT in 9-14 y children. Two randomized repeated measures designs were used. In experiment 1, 17 children (9 boys, 8 girls) consumed isocaloric meals (450 kcal) on four separate mornings containing: 7 g (control), 15 g (low protein, LP), 30 g (medium protein, MP) or 45 g (high protein, HP) of protein. Blood glucose and subjective appetite were measured at baseline and regular intervals for 4 h, and FI was measured at 4 h. In experiment 2, 9 children (6 boys, 3 girls) consumed the control or HP breakfast on two separate mornings, and both DIT and subjective appetite were determined over 5 h. In experiment 1, all dietary protein treatments suppressed subjective appetite compared to control (p < 0.001), and the HP breakfast suppressed FI compared with the LP breakfast and control (p < 0.05). In experiment 2, DIT was higher after HP than control (p < 0.05). In conclusion, increasing the dietary protein content of breakfast had favorable effects on satiety, FI, and DIT in children.
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Affiliation(s)
- Nick Bellissimo
- School of Nutrition, Ryerson University, Toronto, ON M5B-2K3, Canada; (T.F.); (V.C.H.W.); (N.R.B.); (A.S.); (K.S.)
- Correspondence: ; Tel.: +14-16-979-5000-x553026
| | - Tammy Fansabedian
- School of Nutrition, Ryerson University, Toronto, ON M5B-2K3, Canada; (T.F.); (V.C.H.W.); (N.R.B.); (A.S.); (K.S.)
| | - Vincent C.H. Wong
- School of Nutrition, Ryerson University, Toronto, ON M5B-2K3, Canada; (T.F.); (V.C.H.W.); (N.R.B.); (A.S.); (K.S.)
| | | | - Neil R. Brett
- School of Nutrition, Ryerson University, Toronto, ON M5B-2K3, Canada; (T.F.); (V.C.H.W.); (N.R.B.); (A.S.); (K.S.)
| | - Alexander Schwartz
- School of Nutrition, Ryerson University, Toronto, ON M5B-2K3, Canada; (T.F.); (V.C.H.W.); (N.R.B.); (A.S.); (K.S.)
| | - Stephanie Cassin
- Department of Psychology, Ryerson University, Toronto, ON M5B-2K3, Canada;
| | - Katherine Suitor
- School of Nutrition, Ryerson University, Toronto, ON M5B-2K3, Canada; (T.F.); (V.C.H.W.); (N.R.B.); (A.S.); (K.S.)
| | - Dérick Rousseau
- Department of Chemistry & Biology, Ryerson University, Toronto, ON M5B-2K3, Canada;
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100
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Fuglsang-Nielsen R, Rakvaag E, Langdahl B, Knudsen KEB, Hartmann B, Holst JJ, Hermansen K, Gregersen S. Effects of whey protein and dietary fiber intake on insulin sensitivity, body composition, energy expenditure, blood pressure, and appetite in subjects with abdominal obesity. Eur J Clin Nutr 2020; 75:611-619. [PMID: 32948867 DOI: 10.1038/s41430-020-00759-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 08/12/2020] [Accepted: 09/08/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND Recently, we demonstrated that whey protein (WP) combined with low dietary fiber improved lipemia, a risk factor for cardiovascular disease in subjects with abdominal obesity. In the present study, we investigated the effects of intake of WP and dietary fiber from enzyme-treated wheat bran on other metabolic parameters of the metabolic syndrome. METHODS The study was a 12-week, double-blind, randomized, controlled, parallel intervention study. We randomized 73 subjects with abdominal obesity to 1 of 4 iso-energetic dietary interventions: 60 g per day of either WP hydrolysate or maltodextrin (MD) combined with high-fiber (HiFi; 30 g dietary fiber/day) or low-fiber (LoFi; 10 g dietary fiber/day) cereal products. We assessed changes in insulin sensitivity, gut hormones (GLP-1, GLP-2, GIP, and peptide YY), body composition, 24-h BP, resting energy expenditure and respiratory exchange ratio (RER), and appetite. RESULTS Sixty-five subjects completed the trial. Subjective hunger ratings were lower after 12 weeks of WP compared with MD, independent of fiber content (P = 0.02). We found no effects on ratings of satiety, fullness or prospective food consumption for either of the interventions. Intake of WP combined with LoFi increased the postprandial peptide YY response. There were no effects of WP or fiber on insulin sensitivity, body composition, energy expenditure, incretins, or 24-h BP. CONCLUSIONS WP consumption for 12 weeks reduced subjective ratings of hunger in subjects with abdominal obesity. Neither WP nor dietary fiber from wheat bran affected insulin sensitivity, 24-h BP, gut hormone responses, body composition, or energy expenditure compared with MD and low dietary fiber.
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Affiliation(s)
- Rasmus Fuglsang-Nielsen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark. .,Department of Internal Medicine, Regional Hospital Horsens, Horsens, Denmark. .,Steno Diabetes Center Aarhus, Aarhus, Denmark.
| | - Elin Rakvaag
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Clinical Pharmacology, Novo Nordisk A/S, Søborg, Denmark
| | - Bente Langdahl
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | | | - Bolette Hartmann
- Novo Nordisk Foundation Center for Basic Metabolic Research, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens Juul Holst
- Novo Nordisk Foundation Center for Basic Metabolic Research, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kjeld Hermansen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Søren Gregersen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Steno Diabetes Center Aarhus, Aarhus, Denmark
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