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Tien DS, Hockey M, So D, Stanford J, Clarke ED, Collins CE, Staudacher HM. Recommendations for Designing, Conducting, and Reporting Feeding Trials in Nutrition Research. Adv Nutr 2024:100283. [PMID: 39134209 DOI: 10.1016/j.advnut.2024.100283] [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: 05/23/2024] [Revised: 07/05/2024] [Accepted: 08/07/2024] [Indexed: 09/01/2024] Open
Abstract
Double-blind, placebo-controlled, randomized controlled trials are the gold standard for clinical trials in nutrition science. For trials of whole diets, dietary counseling is advantageous as they offer clinical translatability although can vary in the fidelity of the intended intervention from participant to participant and across studies. Feeding trials, in which most or all food is provided, offer high precision and can provide proof-of-concept evidence that a dietary intervention is efficacious and can also better evaluate the effect of known quantities of foods and nutrients on physiology. However, they come with additional methodological complexities. Feeding trials also call for a variety of unique methodological considerations, not least of which relate to the design and delivery of diets to participants. This review aims to provide a comprehensive summary of recommendations for design and conduct of feeding trials, encompassing domiciled and nondomiciled feeding trials. Several pertinent aspects of trial design and methodology are discussed, including defining the study population to maximize retention, safety, and generalizability of findings, recommendations for design of control interventions and optimizing blinding, and specific considerations for clinical populations. A detailed stepwise process for menu design, development, validation, and delivery are also presented. These recommendations aim to facilitate methodologic consistency and execution of high-quality feeding trials, ultimately facilitating improved understanding of the role of diet in treating disease and the underpinning mechanisms.
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Affiliation(s)
- Delyse Sy Tien
- Food & Mood Centre, the Institute for Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, Victoria, Australia
| | - Meghan Hockey
- Food & Mood Centre, the Institute for Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, Victoria, Australia
| | - Daniel So
- Department of Gastroenterology, Monash University and Alfred Health, Melbourne, Victoria, Australia
| | - Jordan Stanford
- School of Health Sciences, College of Health Medicine and Wellbeing, the University of Newcastle, New South Wales, Australia; Food and Nutrition Research Program, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
| | - Erin D Clarke
- School of Health Sciences, College of Health Medicine and Wellbeing, the University of Newcastle, New South Wales, Australia; Food and Nutrition Research Program, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
| | - Clare E Collins
- School of Health Sciences, College of Health Medicine and Wellbeing, the University of Newcastle, New South Wales, Australia; Food and Nutrition Research Program, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
| | - Heidi M Staudacher
- Food & Mood Centre, the Institute for Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, Victoria, Australia.
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Yuan X, Wei Y, Jiang H, Wang H, Wang Z, Dong M, Dong X, Zhang J. Longitudinal Relationship between the Percentage of Energy Intake from Macronutrients and Overweight/Obesity among Chinese Adults from 1991 to 2018. Nutrients 2024; 16:666. [PMID: 38474794 DOI: 10.3390/nu16050666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/22/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
To investigate the prospective relationship between macronutrient intake and overweight/obesity, data were collected in the China Health and Nutrition Survey (CHNS) from 1991 to 2018. Adults who participated in at least two waves of the survey and were not obese at baseline were selected as the study subjects. A total of 14,531 subjects were finally included with complete data. Overweight/obesity was defined as a body mass index (BMI) ≥ 24.0 kg/m2. The generalized estimating equation (GEE) was used to analyze the relationship between the percentage of energy intake from macronutrients and BMI and overweight/obesity. The percentages of energy intake from protein and fat showed an increasing trend (p < 0.01), and the percentage of energy intake from carbohydrate showed a decreasing trend (p < 0.01) among Chinese adults between 1991 and 2018. Adjusting for covariates, the energy intake from fat was positively correlated with BMI, while the energy intake from carbohydrates was negatively correlated with BMI. The percentage of energy intake from non-high-quality protein and polyunsaturated fatty acids (PUFA) were positively correlated with overweight/obesity. In contrast, monounsaturated fatty acids (MUFA) and high-quality carbohydrates were negatively correlated with overweight/obesity. In short, fat, non-high-quality protein, saturated fatty acids (SFA), and PUFA were positively correlated with the risk of obesity, whereas higher carbohydrate, MUFA, and high-quality carbohydrate intake were associated with a lower risk of obesity. Obesity can be effectively prevented by appropriately adjusting the proportion of intake from the three major macronutrients.
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Affiliation(s)
- Xiaorong Yuan
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Yanli Wei
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Hongru Jiang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Huijun Wang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
- Key Laboratory of Trace Element Nutrition of Health Commission of China, Beijing 100050, China
| | - Zhihong Wang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Mengru Dong
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Xiaohui Dong
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Jiguo Zhang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
- Key Laboratory of Trace Element Nutrition of Health Commission of China, Beijing 100050, China
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Luo M, Liu Y, Ye P, Cai S, Yao Z, Zhao L, Luo J, Yu D. Weight-Control Behaviors and Dietary Intake in Chinese Adults: An Analysis of Three National Surveys (2002–2015). Nutrients 2023; 15:nu15061395. [PMID: 36986125 PMCID: PMC10051790 DOI: 10.3390/nu15061395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
Weight control through dietary management is becoming increasingly common worldwide. This study aimed to evaluate and compare the dietary intake and diet quality between Chinese adults with and without weight-control behaviors. Data were collected from the China National Nutrition Survey 2002, 2012, and 2015. Dietary intake was assessed using a combination of 24 h dietary recall of three consecutive days and a weighing method. Diet quality was calculated based on China healthy diet index (CHDI). A total of 167,355 subjects were included, of which 11,906 (8.0%) adults reported attempting to control weight within the past 12 months. Participants with weight control had lower daily total energy intake, as well as lower percentages of energy from carbohydrates, low-quality carbohydrates, and plant protein, but higher percentages of energy from protein, fat, high-quality carbohydrates, animal protein, saturated fatty acids, and monounsaturated fatty acids than those without weight control. Additionally, the CHDI score in the weight-control group was higher than those without (53.40 vs. 48.79, p < 0.001). Fewer than 40% of participants in both groups met the requirement for all specific food groups. Chinese adults who reported weight-control behaviors had an energy-restricted diet characterized by reduced carbohydrate intake and overall higher diet quality compared with those without dietary-control behaviors. However, both groups had significant room for improvement in meeting dietary recommendations.
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Affiliation(s)
- Miyang Luo
- Xiangya School of Public Health, Central South University, Changsha 410008, China; (M.L.); (Y.L.); (Z.Y.)
| | - Yixu Liu
- Xiangya School of Public Health, Central South University, Changsha 410008, China; (M.L.); (Y.L.); (Z.Y.)
| | - Ping Ye
- Yuxi Center for Disease Control and Prevention, Yuxi 653100, China;
| | - Shuya Cai
- Key Laboratory of Trace Element Nutrition of National Health Commission, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China; (S.C.); (L.Z.)
| | - Zhenzhen Yao
- Xiangya School of Public Health, Central South University, Changsha 410008, China; (M.L.); (Y.L.); (Z.Y.)
| | - Liyun Zhao
- Key Laboratory of Trace Element Nutrition of National Health Commission, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China; (S.C.); (L.Z.)
| | - Jiayou Luo
- Xiangya School of Public Health, Central South University, Changsha 410008, China; (M.L.); (Y.L.); (Z.Y.)
- Correspondence: (J.L.); (D.Y.)
| | - Dongmei Yu
- Key Laboratory of Trace Element Nutrition of National Health Commission, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China; (S.C.); (L.Z.)
- Correspondence: (J.L.); (D.Y.)
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Yang X, Bao L, Zhang Y, Long J, Li Y, Wang H, Cui Y, Yan D. Novel weight loss diet attenuates dietary-induced obesity in mice and might correlate with altered gut microbiota and metabolite profiles. Front Nutr 2022; 9:987955. [DOI: 10.3389/fnut.2022.987955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 10/27/2022] [Indexed: 11/13/2022] Open
Abstract
Although many dietary patterns have been studied for weight loss, various limitations still exist. Therefore, we designed a novel weight loss diet (NWLD) with carbohydrate, protein, and fat (energy) contents of 45%, 20%, and 35%, respectively. The saturated fatty acids: monounsaturated fatty acids:polyunsaturated fatty acids ratio was 1:2:1, and the insoluble: soluble dietary fiber ratio was 2:1. We aimed to observe the effect of NWLD on weight loss and understand the underlying metabolic mechanisms. Twenty-nine male C57BL/6J mice were selected. Nine mice were fed ordinary feed in a blank control group, and the rest were fed a high-fat diet (HFD) to establish obese mouse models. Twelve weeks later, obesity models were established, and 10 obese mice were switched to NWLD feeding. Six weeks after switching the diet, the serum, intestinal feces, and kidneys of mice were collected. Obesity-related indicators, gut microbial composition, and fecal metabolite profiles of all the mice were determined, and the correlations among these indicators were analyzed. Kidney function indicators were also assessed. The results showed that the NWLD attenuated HFD-induced weight gain, serum triglycerides (TG), and inflammatory factors, optimized the body composition without kidney function impairment. Amino acid metabolism pathways and metabolites might play key roles in this process. The findings of this research imply that NWLD could be an effective nutritional remedy for managing dietary-induced obesity.
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Zhao R, Zhao L, Gao X, Yang F, Yang Y, Fang H, Ju L, Xu X, Guo Q, Li S, Cheng X, Cai S, Yu D, Ding G. Geographic Variations in Dietary Patterns and Their Associations with Overweight/Obesity and Hypertension in China: Findings from China Nutrition and Health Surveillance (2015-2017). Nutrients 2022; 14:nu14193949. [PMID: 36235601 PMCID: PMC9572670 DOI: 10.3390/nu14193949] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/14/2022] [Accepted: 09/21/2022] [Indexed: 02/07/2023] Open
Abstract
Regional dietetic cultures were indicated in China, but how dietary patterns geographically varied across China is unknown. Few studies systematically investigated the association of dietary patterns with overweight/obesity and hypertension and the potential mechanism with a national sample. This study included 34,040 adults aged 45 years and older from China Nutrition and Health Surveillance (2015−2017), who had complete outcome data, reliable intakes of calorie and cooking oils, unchanged diet habits, and without diagnosed cancer or cardiovascular disease. Outcomes were overweight/obesity and hypertension. By using the Gaussian finite mixture models, four dietary patterns were identified—common rice-based dietary pattern (CRB), prudent diversified dietary pattern (PD), northern wheat-based dietary pattern (NWB), and southern rice-based dietary pattern (SRB). Geographic variations in dietary patterns were depicted by age−sex standardized proportions of each pattern across 31 provinces in China. We assessed the association of these dietary patterns with outcomes and calculated the proportion mediated (PM) by overweight/obesity in the association of the dietary patterns with hypertension. Evident geographic disparities in dietary patterns across 31 provinces were observed. With CRB as reference group and covariates adjusted, the NWB had higher odds of being overweight/obese (odds ratio (OR) = 1.44, 95% confidence interval (CI): 1.36−1.52, p < 0.001) and hypertension (OR = 1.07, 95%CI: 1.01−1.14, p < 0.001, PM = 43.2%), while the SRB and the PD had lower odds of being overweight/obese (ORs = 0.84 and 0.92, 95%CIs: 0.79−0.89 and 0.85−0.99, p < 0.001 for both) and hypertension (ORs = 0.93 and 0.87, 95%CIs: 0.87−0.98 and 0.80−0.94, p = 0.038 for SRB and p < 0.001 for PD, PMs = 27.8% and 9.9%). The highest risk of overweight/obesity in the NWB presented in relatively higher carbohydrate intake (about 60% of energy) and relatively low fat intake (about 20% of energy). The different trends in the association of protein intake with overweight/obesity among dietary patterns were related to differences in animal food sources. In conclusion, the geographic distribution disparities of dietary patterns illustrate the existence of external environment factors and underscore the need for geographic-targeted dietary actions. Optimization of the overall dietary pattern is the key to the management of overweight/obesity and hypertension in China, with the emphasis on reducing low-quality carbohydrate intake, particularly for people with the typical northern diet, and selection of animal foods, particularly for people with the typical southern diet.
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Affiliation(s)
- Rongping Zhao
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Liyun Zhao
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Xiang Gao
- Department of Nutritional Sciences, The Pennsylvania State University, State College, PA 16802, USA
| | - Fan Yang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yuxiang Yang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Hongyun Fang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Lahong Ju
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Xiaoli Xu
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Qiya Guo
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Shujuan Li
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Xue Cheng
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Shuya Cai
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Dongmei Yu
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
- Correspondence: (D.Y.); (G.D.)
| | - Gangqiang Ding
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
- Correspondence: (D.Y.); (G.D.)
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Wu MY, Du MH, Wen H, Wang WQ, Tang J, Shen LR. Effects of n-6 PUFA-rich soybean oil, MUFA-rich olive oil and camellia seed oil on weight and cardiometabolic profiles among Chinese women: a 3-month double-blind randomized controlled-feeding trial. Food Funct 2022; 13:4375-4383. [PMID: 35389391 DOI: 10.1039/d1fo03759e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Previous studies have suggested that replacing saturated fat with unsaturated fat is beneficial for cardiometabolic health. However, research that directly compares the effects of polyunsaturated fatty acids (PUFAs) and monounsaturated fatty acids (MUFAs) is rare. The present 3-month, three-arm, randomized, controlled-feeding trial aimed to investigate the effects of n-6 PUFA- and MUFA-rich cooking oils on body weight and cardiometabolic profiles among middle-aged and elderly Chinese women at high cardiovascular risk. Ninety participants were recruited and randomly assigned to groups fed diets using n-6 PUFA-rich soybean oil (SO, n = 30), MUFA-rich olive oil (OO, n = 30), and MUFA-rich camellia seed oil (CSO, n = 30) as cooking oils considering traditional Chinese eating habits for 3 months. Participants were required to eat only the foods provided for lunch and dinner, and avoid intake of edible oils in breakfast. Body weight and cardiovascular profiles were measured at the baseline, middle, and end of the intervention, and group differences in changes of outcomes during intervention were examined by a linear mixed model. We found no significant difference in the changes of body weight among the SO group (mean change, 0.31 kg; 95% CI, -0.88 to 0.27), the OO group (mean change, -0.13 kg; 95% CI, -0.62 to 0.36), and the CSO group (mean change, -0.72 kg; 95% CI, -1.38 to -0.07). For secondary outcomes, the OO group showed a slight increase in HDL cholesterol (P = 0.03), while the CSO group showed greater reduction in aspartate aminotransferase (AST) (P = 0.02) when compared with the SO group. These results suggested that MUFA-rich OO and CSO exerted more favorable effects on cardiometabolic profiles among middle-aged and elderly Chinese women at high cardiovascular risk than the n-6 PUFA-rich SO.
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Affiliation(s)
- Min-Yu Wu
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou, China.
| | - Meng-Hao Du
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Hao Wen
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou, China.
| | - Wen-Qiang Wang
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou, China.
| | - Jun Tang
- Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.
| | - Li-Rong Shen
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou, China.
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Positive Interventional Effect of Engineered Butyrate-Producing Bacteria on Metabolic Disorders and Intestinal Flora Disruption in Obese Mice. Microbiol Spectr 2022; 10:e0114721. [PMID: 35293806 PMCID: PMC9045090 DOI: 10.1128/spectrum.01147-21] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The substantially increased prevalence of obesity and obesity-related diseases has generated considerable concern. Currently, synthetic biological strategies have played an essential role in preventing and treating chronic diseases such as obesity. A growing number of symbiotic bacteria used as vectors for genetic engineering have been applied to create living therapeutics. In this study, using Bacillus subtilis as a cellular chassis, we constructed the engineered butyrate-producing strain BsS-RS06551 with a butyrate yield of 1.5 g/liter. A mouse model of obesity induced by a high-fat diet (HFD) was established to study the long-term intervention effects of this butyrate-producing bacteria on obesity. Combined with phenotypic assay results, we found that BsS-RS06551 could effectively retard body weight gain induced by a high-fat diet and visceral fat accumulation of mice, whereas it could improve glucose tolerance and insulin tolerance, reducing liver damage. We explored the BsS-RS06551 mechanism of action on host function and changes in intestinal flora by integrating multiple omics profiling, including untargeted metabolomics and metagenomics. The results showed that 24 major differential metabolites were involved in the metabolic regulation of BsS-RS06551 to prevent obesity in mice, including bile acid metabolism, branch chain amino acids, aromatic amino acids, and other metabolic pathways. Continuous ingestion of BsS-RS06551 could regulate gut microbiota composition and structure and enhance intestinal flora metabolic function abundance, which was closely related to host interactions. Our results demonstrated that engineered butyrate-producing bacteria had potential as an effective strategy to prevent obesity. IMPORTANCE Obesity is a chronic metabolic disease with an imbalance between energy intake and energy expenditure, and obesity-related metabolic diseases have become increasingly common. There is an urgent need to develop effective interventions for the prevention and treatment of obesity. This study showed that long-term consumption of BsS-RS06551 had a significant inhibitory effect on obesity induced by a high-fat diet and was more potent in inhibiting obesity than prebiotic inulin. In addition, this study showed a beneficial effect on host glucose, lipid metabolism, and gut microbe composition. Considering its colonization potential, this engineered bacteria provided a new strategy for the effective and convenient treatment of obesity in the long term.
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Naude CE, Brand A, Schoonees A, Nguyen KA, Chaplin M, Volmink J. Low-carbohydrate versus balanced-carbohydrate diets for reducing weight and cardiovascular risk. Cochrane Database Syst Rev 2022; 1:CD013334. [PMID: 35088407 PMCID: PMC8795871 DOI: 10.1002/14651858.cd013334.pub2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Debates on effective and safe diets for managing obesity in adults are ongoing. Low-carbohydrate weight-reducing diets (also known as 'low-carb diets') continue to be widely promoted, marketed and commercialised as being more effective for weight loss, and healthier, than 'balanced'-carbohydrate weight-reducing diets. OBJECTIVES To compare the effects of low-carbohydrate weight-reducing diets to weight-reducing diets with balanced ranges of carbohydrates, in relation to changes in weight and cardiovascular risk, in overweight and obese adults without and with type 2 diabetes mellitus (T2DM). SEARCH METHODS We searched MEDLINE (PubMed), Embase (Ovid), the Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science Core Collection (Clarivate Analytics), ClinicalTrials.gov and WHO International Clinical Trials Registry Platform (ICTRP) up to 25 June 2021, and screened reference lists of included trials and relevant systematic reviews. Language or publication restrictions were not applied. SELECTION CRITERIA We included randomised controlled trials (RCTs) in adults (18 years+) who were overweight or living with obesity, without or with T2DM, and without or with cardiovascular conditions or risk factors. Trials had to compare low-carbohydrate weight-reducing diets to balanced-carbohydrate (45% to 65% of total energy (TE)) weight-reducing diets, have a weight-reducing phase of 2 weeks or longer and be explicitly implemented for the primary purpose of reducing weight, with or without advice to restrict energy intake. DATA COLLECTION AND ANALYSIS: Two review authors independently screened titles and abstracts and full-text articles to determine eligibility; and independently extracted data, assessed risk of bias using RoB 2 and assessed the certainty of the evidence using GRADE. We stratified analyses by participants without and with T2DM, and by diets with weight-reducing phases only and those with weight-reducing phases followed by weight-maintenance phases. Primary outcomes were change in body weight (kg) and the number of participants per group with weight loss of at least 5%, assessed at short- (three months to < 12 months) and long-term (≥ 12 months) follow-up. MAIN RESULTS We included 61 parallel-arm RCTs that randomised 6925 participants to either low-carbohydrate or balanced-carbohydrate weight-reducing diets. All trials were conducted in high-income countries except for one in China. Most participants (n = 5118 randomised) did not have T2DM. Mean baseline weight across trials was 95 kg (range 66 to 132 kg). Participants with T2DM were older (mean 57 years, range 50 to 65) than those without T2DM (mean 45 years, range 22 to 62). Most trials included men and women (42/61; 3/19 men only; 16/19 women only), and people without baseline cardiovascular conditions, risk factors or events (36/61). Mean baseline diastolic blood pressure (DBP) and low-density lipoprotein (LDL) cholesterol across trials were within normal ranges. The longest weight-reducing phase of diets was two years in participants without and with T2DM. Evidence from studies with weight-reducing phases followed by weight-maintenance phases was limited. Most trials investigated low-carbohydrate diets (> 50 g to 150 g per day or < 45% of TE; n = 42), followed by very low (≤ 50 g per day or < 10% of TE; n = 14), and then incremental increases from very low to low (n = 5). The most common diets compared were low-carbohydrate, balanced-fat (20 to 35% of TE) and high-protein (> 20% of TE) treatment diets versus control diets balanced for the three macronutrients (24/61). In most trials (45/61) the energy prescription or approach used to restrict energy intake was similar in both groups. We assessed the overall risk of bias of outcomes across trials as predominantly high, mostly from bias due to missing outcome data. Using GRADE, we assessed the certainty of evidence as moderate to very low across outcomes. Participants without and with T2DM lost weight when following weight-reducing phases of both diets at the short (range: 12.2 to 0.33 kg) and long term (range: 13.1 to 1.7 kg). In overweight and obese participants without T2DM: low-carbohydrate weight-reducing diets compared to balanced-carbohydrate weight-reducing diets (weight-reducing phases only) probably result in little to no difference in change in body weight over three to 8.5 months (mean difference (MD) -1.07 kg, (95% confidence interval (CI) -1.55 to -0.59, I2 = 51%, 3286 participants, 37 RCTs, moderate-certainty evidence) and over one to two years (MD -0.93 kg, 95% CI -1.81 to -0.04, I2 = 40%, 1805 participants, 14 RCTs, moderate-certainty evidence); as well as change in DBP and LDL cholesterol over one to two years. The evidence is very uncertain about whether there is a difference in the number of participants per group with weight loss of at least 5% at one year (risk ratio (RR) 1.11, 95% CI 0.94 to 1.31, I2 = 17%, 137 participants, 2 RCTs, very low-certainty evidence). In overweight and obese participants with T2DM: low-carbohydrate weight-reducing diets compared to balanced-carbohydrate weight-reducing diets (weight-reducing phases only) probably result in little to no difference in change in body weight over three to six months (MD -1.26 kg, 95% CI -2.44 to -0.09, I2 = 47%, 1114 participants, 14 RCTs, moderate-certainty evidence) and over one to two years (MD -0.33 kg, 95% CI -2.13 to 1.46, I2 = 10%, 813 participants, 7 RCTs, moderate-certainty evidence); as well in change in DBP, HbA1c and LDL cholesterol over 1 to 2 years. The evidence is very uncertain about whether there is a difference in the number of participants per group with weight loss of at least 5% at one to two years (RR 0.90, 95% CI 0.68 to 1.20, I2 = 0%, 106 participants, 2 RCTs, very low-certainty evidence). Evidence on participant-reported adverse effects was limited, and we could not draw any conclusions about these. AUTHORS' CONCLUSIONS: There is probably little to no difference in weight reduction and changes in cardiovascular risk factors up to two years' follow-up, when overweight and obese participants without and with T2DM are randomised to either low-carbohydrate or balanced-carbohydrate weight-reducing diets.
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Affiliation(s)
- Celeste E Naude
- Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Amanda Brand
- Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Anel Schoonees
- Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Kim A Nguyen
- Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Marty Chaplin
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Jimmy Volmink
- Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Lee JH, Duster M, Roberts T, Devinsky O. United States Dietary Trends Since 1800: Lack of Association Between Saturated Fatty Acid Consumption and Non-communicable Diseases. Front Nutr 2022; 8:748847. [PMID: 35118102 PMCID: PMC8805510 DOI: 10.3389/fnut.2021.748847] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/20/2021] [Indexed: 12/15/2022] Open
Abstract
We reviewed data on the American diet from 1800 to 2019. Methods: We examined food availability and estimated consumption data from 1800 to 2019 using historical sources from the federal government and additional public data sources. Results: Processed and ultra-processed foods increased from <5 to >60% of foods. Large increases occurred for sugar, white and whole wheat flour, rice, poultry, eggs, vegetable oils, dairy products, and fresh vegetables. Saturated fats from animal sources declined while polyunsaturated fats from vegetable oils rose. Non-communicable diseases (NCDs) rose over the twentieth century in parallel with increased consumption of processed foods, including sugar, refined flour and rice, and vegetable oils. Saturated fats from animal sources were inversely correlated with the prevalence of NCDs. Conclusions: As observed from the food availability data, processed and ultra-processed foods dramatically increased over the past two centuries, especially sugar, white flour, white rice, vegetable oils, and ready-to-eat meals. These changes paralleled the rising incidence of NCDs, while animal fat consumption was inversely correlated.
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Affiliation(s)
- Joyce H. Lee
- Department of Neurology, New York University, Grossman School of Medicine, New York, NY, United States
- Medical College of Wisconsin, Milwaukee, WI, United States
| | - Miranda Duster
- Department of Neurology, New York University, Grossman School of Medicine, New York, NY, United States
| | - Timothy Roberts
- New York University, Health Sciences Library, New York, NY, United States
| | - Orrin Devinsky
- Department of Neurology, New York University, Grossman School of Medicine, New York, NY, United States
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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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11
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Chen Y, Qin Y, Zhang Z, Huang S, Jiao C, Zhang Z, Bao W, Mao L. Association of the low-carbohydrate dietary pattern with postpartum weight retention in women. Food Funct 2021; 12:10764-10772. [PMID: 34609398 DOI: 10.1039/d1fo00935d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Low-carbohydrate diets (LCD) have been considered a popular dietary strategy for weight loss. However, the association of the low-carbohydrate dietary pattern with postpartum weight retention (PPWR) in women remains unknown. The present study involved 426 women from a prospective mother-infant cohort study. Overall, animal or plant LCD scores, which represent adherence to different low-carbohydrate dietary patterns, were calculated using diet intake information assessed by three consecutive 24 h dietary surveys. PPWR was assessed by the difference of weight at 1 year postpartum minus the pre-pregnancy weight. After adjusting for potential confounding variables, women in higher quartiles of total and animal-based LCD scores had a significantly lower body weight and weight retention at 1 year postpartum (P < 0.05). The multivariable-adjusted ORs of substantial PPWR (≥5 kg), comparing the highest with the lowest quartile, were 0.47 (95% confidence interval 0.23-0.96) for the total LCD score (P = 0.021 for trend) and 0.38 (95% confidence interval 0.19-0.77) for the animal-based LCD score (P = 0.019 for trend), while this association was significantly attenuated by rice, glycemic load, fish, poultry, animal fat and animal protein (P for trend <0.05). A high score for plant-based LCD was not significantly associated with the risk of PPWR (P > 0.05). The findings suggested that a low-carbohydrate dietary pattern, particularly with high protein and fat intake from animal-source foods, is associated with a decreased risk of weight retention at 1 year postpartum. This association was mainly due to low intake of glycemic load and high intake of fish and poultry.
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Affiliation(s)
- Ying Chen
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, Guangdong, P. R. China.
| | - Yuting Qin
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, Guangdong, P. R. China.
| | - Zhiwei Zhang
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, Guangdong, P. R. China.
| | - Shaoming Huang
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, Guangdong, P. R. China.
| | - Changya Jiao
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, Guangdong, P. R. China.
| | - Zheqing Zhang
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, Guangdong, P. R. China.
| | - Wei Bao
- Department of Epidemiology, College of Public Health, University of Iowa, 145 North Riverside Drive, Room S431 CPHB, Iowa City, IA 52242, USA
| | - Limei Mao
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, Guangdong, P. R. China.
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12
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Shemirani F, Djafarian K, Fotouhi A, Azadbakht L, Rezaei N, Chamari M, Shabani S, Mahmoudi M. Effect of Paleolithic-based low-carbohydrate vs. moderate-carbohydrate diets with portion-control and calorie-counting on CTRP6, asprosin and metabolic markers in adults with metabolic syndrome: A randomized clinical trial. Clin Nutr ESPEN 2021; 48:87-98. [DOI: 10.1016/j.clnesp.2021.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 10/29/2021] [Accepted: 11/07/2021] [Indexed: 01/05/2023]
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13
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Maiuolo J, Gliozzi M, Carresi C, Musolino V, Oppedisano F, Scarano F, Nucera S, Scicchitano M, Bosco F, Macri R, Ruga S, Cardamone A, Coppoletta A, Mollace A, Cognetti F, Mollace V. Nutraceuticals and Cancer: Potential for Natural Polyphenols. Nutrients 2021; 13:nu13113834. [PMID: 34836091 PMCID: PMC8619660 DOI: 10.3390/nu13113834] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/20/2021] [Accepted: 10/25/2021] [Indexed: 12/14/2022] Open
Abstract
Cancer is one of the leading causes of death globally, associated with multifactorial pathophysiological components. In particular, genetic mutations, infection or inflammation, unhealthy eating habits, exposition to radiation, work stress, and/or intake of toxins have been found to contribute to the development and progression of cancer disease states. Early detection of cancer and proper treatment have been found to enhance the chances of survival and healing, but the side effects of anticancer drugs still produce detrimental responses that counteract the benefits of treatment in terms of hospitalization and survival. Recently, several natural bioactive compounds were found to possess anticancer properties, capable of killing transformed or cancerous cells without being toxic to their normal counterparts. This effect occurs when natural products are associated with conventional treatments, thereby suggesting that nutraceutical supplementation may contribute to successful anticancer therapy. This review aims to discuss the current literature on four natural bioactive extracts mostly characterized by a specific polyphenolic profile. In particular, several activities have been reported to contribute to nutraceutical support in anticancer treatment: (1) inhibition of cell proliferation, (2) antioxidant activity, and (3) anti-inflammatory activity. On the other hand, owing to their attenuation of the toxic effect of current anticancer therapies, natural antioxidants may contribute to improving the compliance of patients undergoing anticancer treatment. Thus, nutraceutical supplementation, along with current anticancer drug treatment, may be considered for better responses and compliance in patients with cancer. It should be noted, however, that when data from studies with bioactive plant preparations are discussed, it is appropriate to ensure that experiments have been conducted in accordance with accepted pharmacological research practices so as not to disclose information that is only partially correct.
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Affiliation(s)
- Jessica Maiuolo
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
- Nutramed S.c.a.r.l, Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Micaela Gliozzi
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
- Nutramed S.c.a.r.l, Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Cristina Carresi
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
- Nutramed S.c.a.r.l, Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Vincenzo Musolino
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
- Nutramed S.c.a.r.l, Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Francesca Oppedisano
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
- Nutramed S.c.a.r.l, Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Federica Scarano
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
- Nutramed S.c.a.r.l, Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Saverio Nucera
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
- Nutramed S.c.a.r.l, Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Miriam Scicchitano
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
- Nutramed S.c.a.r.l, Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Francesca Bosco
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
- Nutramed S.c.a.r.l, Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Roberta Macri
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
- Nutramed S.c.a.r.l, Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Stefano Ruga
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
| | - Antonio Cardamone
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
| | - Annarita Coppoletta
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
| | - Annachiara Mollace
- Medical Oncology 1, Regina Elena National Cancer Institute, IRCCS, 00144 Rome, Italy; (A.M.); (F.C.)
| | - Francesco Cognetti
- Medical Oncology 1, Regina Elena National Cancer Institute, IRCCS, 00144 Rome, Italy; (A.M.); (F.C.)
| | - Vincenzo Mollace
- IRC-FSH Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy; (J.M.); (M.G.); (C.C.); (V.M.); (F.O.); (F.S.); (S.N.); (M.S.); (F.B.); (R.M.); (S.R.); (A.C.); (A.C.)
- Nutramed S.c.a.r.l, Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
- IRCCS San Raffaele, Via di Valcannuta 247, 00133 Rome, Italy
- Correspondence:
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14
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Wallenius V, Elebring E, Casselbrant A, Laurenius A, le Roux CW, Docherty NG, Biörserud C, Björnfot N, Engström M, Marschall HU, Fändriks L. Glycemic Control and Metabolic Adaptation in Response to High-Fat versus High-Carbohydrate Diets-Data from a Randomized Cross-Over Study in Healthy Subjects. Nutrients 2021; 13:nu13103322. [PMID: 34684324 PMCID: PMC8538379 DOI: 10.3390/nu13103322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/13/2021] [Accepted: 09/20/2021] [Indexed: 11/26/2022] Open
Abstract
Granular study of metabolic responses to alterations in the ratio of dietary macro-nutrients can enhance our understanding of how dietary modifications influence patients with impaired glycemic control. In order to study the effect of diets enriched in fat or carbohydrates, fifteen healthy, normal-weight volunteers received, in a cross-over design, and in a randomized unblinded order, two weeks of an iso-caloric high-fat diet (HFD: 60E% from fat) and a high-carbohydrate diet (HCD: 60E% from carbohydrates). A mixed meal test (MMT) was performed at the end of each dietary period to examine glucose clearance kinetics and insulin and incretin hormone levels, as well as plasma metabolomic profiles. The MMT induced almost identical glycemia and insulinemia following the HFD or HCD. GLP-1 levels were higher after the HFD vs. HCD, whereas GIP did not differ. The HFD, compared to the HCD, increased the levels of several metabolomic markers of risk for the development of insulin resistance, e.g., branched-chain amino acid (valine and leucine), creatine and α-hydroxybutyric acid levels. In normal-weight, healthy volunteers, two weeks of the HFD vs. HCD showed similar profiles of meal-induced glycemia and insulinemia. Despite this, the HFD showed a metabolomic pattern implying a risk for a metabolic shift towards impaired insulin sensitivity in the long run.
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Affiliation(s)
- Ville Wallenius
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
- Correspondence: ; Tel.: +46-733836749
| | - Erik Elebring
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - Anna Casselbrant
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - Anna Laurenius
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - Carel W. le Roux
- Metabolic Medicine, School of Medicine, Conway Institute, University College Dublin, Dublin 4, Ireland; (C.W.l.R.); (N.G.D.)
| | - Neil G. Docherty
- Metabolic Medicine, School of Medicine, Conway Institute, University College Dublin, Dublin 4, Ireland; (C.W.l.R.); (N.G.D.)
| | - Christina Biörserud
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - Niclas Björnfot
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - My Engström
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - Hanns-Ulrich Marschall
- Institute of Medicine, Department Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden;
| | - Lars Fändriks
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
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Dietary Habits and Gut Microbiota in Healthy Adults: Focusing on the Right Diet. A Systematic Review. Int J Mol Sci 2021; 22:ijms22136728. [PMID: 34201611 PMCID: PMC8269086 DOI: 10.3390/ijms22136728] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 06/13/2021] [Accepted: 06/15/2021] [Indexed: 12/17/2022] Open
Abstract
Diet is the first to affect our intestinal microbiota and therefore the state of eubiosis. Several studies are highlighting the potential benefits of taking certain nutritional supplements, but a dietary regime that can ensure the health of the intestinal microbiota, and the many pathways it governs, is not yet clearly defined. We performed a systematic review of the main studies concerning the impact of an omnivorous diet on the composition of the microbiota and the production of short-chain fatty acids (SCFAs). Some genera and phyla of interest emerged significantly and about half of the studies evaluated consider them to have an equally significant impact on the production of SCFAs, to be a source of nutrition for our colon cells, and many other processes. Although numerous randomized trials are still needed, the Mediterranean diet could play a valuable role in ensuring our health through direct interaction with our microbiota.
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Wali JA, Solon-Biet SM, Freire T, Brandon AE. Macronutrient Determinants of Obesity, Insulin Resistance and Metabolic Health. BIOLOGY 2021; 10:336. [PMID: 33923531 PMCID: PMC8072595 DOI: 10.3390/biology10040336] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 04/07/2021] [Indexed: 01/18/2023]
Abstract
Obesity caused by the overconsumption of calories has increased to epidemic proportions. Insulin resistance is often associated with an increased adiposity and is a precipitating factor in the development of cardiovascular disease, type 2 diabetes, and altered metabolic health. Of the various factors contributing to metabolic impairments, nutrition is the major modifiable factor that can be targeted to counter the rising prevalence of obesity and metabolic diseases. However, the macronutrient composition of a nutritionally balanced "healthy diet" are unclear, and so far, no tested dietary intervention has been successful in achieving long-term compliance and reductions in body weight and associated beneficial health outcomes. In the current review, we briefly describe the role of the three major macronutrients, carbohydrates, fats, and proteins, and their role in metabolic health, and provide mechanistic insights. We also discuss how an integrated multi-dimensional approach to nutritional science could help in reconciling apparently conflicting findings.
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Affiliation(s)
- Jibran A. Wali
- Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia; (J.A.W.); (S.M.S.-B.); (T.F.)
- School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney, NSW 2006, Australia
| | - Samantha M. Solon-Biet
- Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia; (J.A.W.); (S.M.S.-B.); (T.F.)
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia
| | - Therese Freire
- Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia; (J.A.W.); (S.M.S.-B.); (T.F.)
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia
| | - Amanda E. Brandon
- Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia; (J.A.W.); (S.M.S.-B.); (T.F.)
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia
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Xu L, Cai J, Gao T, Ma A. Shellfish consumption and health: A comprehensive review of human studies and recommendations for enhanced public policy. Crit Rev Food Sci Nutr 2021; 62:4656-4668. [PMID: 33527847 DOI: 10.1080/10408398.2021.1878098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Shellfish, including various species of mollusks (e.g., clams, oysters, and mussels) and crustaceans (e.g., shrimp and crab), have been a cornerstone of healthy dietary recommendations. However, beyond providing basic nutrition needs, their health-promoting effects have been suggested to include inflammation reduction and prevention of various chronic non-communicable diseases. Currently, studies on the association between shellfish consumption and health outcomes have reported conflicting results. The present comprehensive review summarized the latest studies on shellfish consumption and synthesized the available evidence on the potential health benefits or risks of shellfish consumption. The findings demonstrated that shellfish consumption may increase the risk of hyperuricemia and gout but may not increase the risk of type 2 diabetes, cardiovascular diseases, and thyroid cancer. Adequate evidence is lacking on the association between shellfish consumption and the risk of colorectal cancer, pancreatic cancer, oral cancer, endometriosis, hip fracture, cognitive function, wheeze, eczema and food allergy. Raw shellfish consumption may cause gastroenteritis and other diseases infected by bacteria or viruses. This review thus provides consumers and other relevant stakeholders with the latest evidence-based information on the potential benefits and risks of shellfish consumption.
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Affiliation(s)
- Lei Xu
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qngdao, China
| | - Jing Cai
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qngdao, China
| | - Tianlin Gao
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qngdao, China
| | - Aiguo Ma
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qngdao, China
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Cong L, Ren Y, Hou T, Han X, Dong Y, Wang Y, Zhang Q, Liu R, Xu S, Wang L, Du Y, Qiu C. Use of Cardiovascular Drugs for Primary and Secondary Prevention of Cardiovascular Disease Among Rural-Dwelling Older Chinese Adults. Front Pharmacol 2020; 11:608136. [PMID: 33424613 PMCID: PMC7793651 DOI: 10.3389/fphar.2020.608136] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 11/23/2020] [Indexed: 12/23/2022] Open
Abstract
Cardiovascular risk factors and related disorders are common among older adults, and use of various classes of cardiovascular (CV) drugs could reduce the risk of cardiovascular disease (CVD). However, data are sparse with regard to the use of CV drugs among rural-dwelling older adults in China. Therefore, this population-based study aimed to describe use of CV drugs among older adults living in the rural communities in China, while taking into account the use of CV drugs for primary and secondary prevention of CVDs. This study included 5,246 participants (age ≥65 years; 57.17% women; 40.68% illiteracy) in the baseline examination of the MIND-China study. In March-September 2018, data on health-related factors, CVDs (ischemic heart disease, atrial fibrillation, heart failure, and stroke), and CV drug use were collected via face-to-face survey, clinical examination, and laboratory tests. We classified CV drugs according to the Anatomical Therapeutic Chemical classification system for western medications and specific cardiovascular effects for the products of traditional Chinese medicine (TCM). We conducted descriptive analysis. The overall prevalence of major cardiovascular risk factors ranged from 14.30% in diabetes and 23.81% in dyslipidemia to 66.70% in hypertension, and CVDs affected 35.07% of all participants (36.28% in women vs. 33.47% in men, p = 0.035). In the total sample, calcium channel blockers (C08) were most commonly used (10.39%), followed by TCM products (7.64%), hypoglycemic agents (A10, 4.73%), renin-angiotensin system (RAS)-acting agents (C09, 4.61%), and lipid-lowering agents (C10, 4.17%). The proportions of CV drugs for primary prevention (i.e., use of CV drugs among people without CVD) were 3.14% for antithrombotic agents (mainly aspirin), 1.38% for lipid-lowering agents, and 3.11% for RAS-acting agents; the corresponding figures for secondary prevention (i.e., use of CV drugs among people with CVD) were 13.97%, 9.35%, and 7.39%. In conclusion, despite highly prevalent cardiovascular risk factors and CVDs, a fairly low proportion of the rural-dwelling older adults take CV medications for primary and secondary prevention. Notably, TCM products are among the most commonly used CV drugs. These results call for additional efforts to promote implementation of the evidence-based recommendations for prevention of CVDs in the primary care settings.
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Affiliation(s)
- Lin Cong
- Department of Neurology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Shandong Provincial Clinical Research Center for Neurological Diseases, Jinan, China
| | - Yifei Ren
- Department of Neurology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tingting Hou
- Department of Neurology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Shandong Provincial Clinical Research Center for Neurological Diseases, Jinan, China
| | - Xiaolei Han
- Department of Neurology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yi Dong
- Department of Neurology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yongxiang Wang
- Department of Neurology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Shandong Provincial Clinical Research Center for Neurological Diseases, Jinan, China
| | - Qinghua Zhang
- Department of Neurology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Shandong Provincial Clinical Research Center for Neurological Diseases, Jinan, China
| | - Rui Liu
- Department of Neurology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shan Xu
- Department of Neurology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lidan Wang
- Department of Neurology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yifeng Du
- Department of Neurology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Shandong Provincial Clinical Research Center for Neurological Diseases, Jinan, China
| | - Chengxuan Qiu
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Aging Research Center and Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden
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Wang L, Wang H, Zhang B, Popkin BM, Du S. Elevated Fat Intake Increases Body Weight and the Risk of Overweight and Obesity among Chinese Adults: 1991-2015 Trends. Nutrients 2020; 12:E3272. [PMID: 33114561 PMCID: PMC7694029 DOI: 10.3390/nu12113272] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/21/2020] [Accepted: 10/21/2020] [Indexed: 12/16/2022] Open
Abstract
Studies on fat intake and obesity have been inconclusive. This study examined the associations between dietary fat intake and body weight and the risk of overweight and obesity in China. We used data from 23,859 adults aged 20-60 years who participated in the China Health and Nutrition Survey, an ongoing open-cohort study, from 1991 to 2015. We collected detailed dietary data by conducting three 24-h dietary recalls and weighing foods and condiments in household inventories. We examined the associations between fat intake and body weight, body mass index (BMI), and the risk of overweight and obesity with random-effects linear or logistic regression models for panel data. The Chinese population's fat intake, percentage of energy intake from fat, and prevalence of high-fat diets (energy intake from fat > 30%) increased from 68.5 g per day (g/d), 23.1%, and 22.4%, respectively, in 1991 to 79.3 g/d, 35.6%, and 67.2%, respectively, in 2015. The prevalence of overweight and obesity increased from 12.3% to 37.3% during the same period. Fat intake, percentage of energy intake from fat, and a high-fat diet were positively associated with body weight, BMI, and the risk of overweight and obesity in both sexes (p < 0.001) after adjustment for nonfat energy intake, physical activity, and socioeconomic status. Increased fat intake and high-fat diets were associated with increased body weight, BMI, and risk of overweight and obesity. These findings could have a significant impact on Chinese policies and interventions to control overweight and obesity.
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Affiliation(s)
- Liang Wang
- Department of Public Health, Robbins College of Health and Human Sciences, Baylor University, Waco, TX 76798, USA;
| | - Huijun Wang
- Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing 100050, China; (H.W.); (B.Z.)
| | - Bing Zhang
- Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing 100050, China; (H.W.); (B.Z.)
| | - Barry M. Popkin
- Department of Nutrition and Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;
| | - Shufa Du
- Department of Nutrition and Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;
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20
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Yang B, Ren XL, Li ZH, Shi MQ, Ding F, Su KP, Guo XJ, Li D. Lowering effects of fish oil supplementation on proinflammatory markers in hypertension: results from a randomized controlled trial. Food Funct 2020; 11:1779-1789. [PMID: 32044905 DOI: 10.1039/c9fo03085a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Reduced inflammation is one of the potential mechanisms underlying the cardioprotective efficacy of fish oil enriched with eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Supplementation with fish oil has favorable effects on cardiometabolic profiles in Inner Mongolia patients with hypertension, but whether the cardiovascular benefits can be ascribed to reduced subclinical inflammation is unclear among this population. Seventy-seven middle-aged/elderly hypertensive volunteers were randomly assigned to receive either fish oil (FO, n = 38, 2 g day-1 EPA + DHA) or control corn oil (CO, n = 39) for 90 days. FA compositions in erythrocytes and C-reactive protein (CRP, mg L-1), interleukin-6 (IL-6, pg mL-1) and tumor necrosis factor-α (TNF-α, pg mL-1) concentrations in the plasma were measured before and after the 90-day supplementation, and the cardiometabolic risk was expressed as continuously distributed z-scores calculated by standardizing and then summing the individual cardiovascular risk factors. Significant reductions in the TNF-α (-1.87 ± 2.71 vs. -0.64 ± 2.62, p = 0.02) and CRP levels (-0.85 ± 2.49 vs. 0.56 ± 2.14, p = 0.01) were found in the FO group compared with the CO group, but not in the IL-6 levels (-0.66 ± 1.05 vs. -0.25 ± 0.94, p = 0.10). The decreases in the changes of TNF-α levels were positively correlated with the reductions in the cardiometabolic risk scores in the subjects supplemented with FO (r = 0.35, p = 0.02), but not in the control subjects supplemented with CO (r = 0.09, p = 0.54). FO supplementation increased the levels of EPA (p = 0.013), DHA (p = 0.040) and total n-3 FA (p = 0.035), and decreased the levels of 20:4n-6 (p = 0.041) and total n-6 FA (p = 0.011) and the ratio of n-6 to n-3 FA (p = 0.001), compared with the changes related to the CO group. The increases in the changes of erythrocyte total n-3 FA levels were inversely correlated with the concentrations of TNF-α (r = -0.34, p = 0.001) and CRP (r = -0.29, p = 0.020). The present findings suggest that fish oil supplementation may attenuate the proinflammatory reactions in hypertension, which might help promote the cardiometabolic benefits in this Inner Mongolia population.
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Affiliation(s)
- Bo Yang
- Institute of Lipids Medicine & School of Public Health and Management, Wenzhou Medical University, Wenzhou, China.
| | - Xiao-Li Ren
- Institute of Lipids Medicine & School of Public Health and Management, Wenzhou Medical University, Wenzhou, China.
| | - Zi-Hao Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Mei-Qi Shi
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Fang Ding
- The Province Center for Cardio-Cerebral-Vascular Disease, Zhejiang Hospital, Hangzhou, China
| | - Kuan-Pin Su
- Department of Psychiatry & Mind-Body Interface Laboratory, China Medical University Hospital, Taichung, Taiwan
| | - Xiao-Juan Guo
- Institute of Lipids Medicine & School of Public Health and Management, Wenzhou Medical University, Wenzhou, China.
| | - Duo Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
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21
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Wan Y, Li D. High-fat, low-carbohydrate diet was associated with unfavourable impact on colonic luminal microenvironment. Gut 2020; 69:1. [PMID: 31562238 DOI: 10.1136/gutjnl-2019-319776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/13/2019] [Accepted: 09/17/2019] [Indexed: 12/08/2022]
Affiliation(s)
- Yi Wan
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Duo Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China
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22
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Hooper L, Abdelhamid AS, Jimoh OF, Bunn D, Skeaff CM. Effects of total fat intake on body fatness in adults. Cochrane Database Syst Rev 2020; 6:CD013636. [PMID: 32476140 PMCID: PMC7262429 DOI: 10.1002/14651858.cd013636] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The ideal proportion of energy from fat in our food and its relation to body weight is not clear. In order to prevent overweight and obesity in the general population, we need to understand the relationship between the proportion of energy from fat and resulting weight and body fatness in the general population. OBJECTIVES To assess the effects of proportion of energy intake from fat on measures of body fatness (including body weight, waist circumference, percentage body fat and body mass index) in people not aiming to lose weight, using all appropriate randomised controlled trials (RCTs) of at least six months duration. SEARCH METHODS We searched CENTRAL, MEDLINE, Embase, Clinicaltrials.gov and the WHO International Clinical Trials Registry Platform (ICTRP) to October 2019. We did not limit the search by language. SELECTION CRITERIA Trials fulfilled the following criteria: 1) randomised intervention trial, 2) included adults aged at least 18 years, 3) randomised to a lower fat versus higher fat diet, without the intention to reduce weight in any participants, 4) not multifactorial and 5) assessed a measure of weight or body fatness after at least six months. We duplicated inclusion decisions and resolved disagreement by discussion or referral to a third party. DATA COLLECTION AND ANALYSIS We extracted data on the population, intervention, control and outcome measures in duplicate. We extracted measures of body fatness (body weight, BMI, percentage body fat and waist circumference) independently in duplicate at all available time points. We performed random-effects meta-analyses, meta-regression, subgrouping, sensitivity, funnel plot analyses and GRADE assessment. MAIN RESULTS We included 37 RCTs (57,079 participants). There is consistent high-quality evidence from RCTs that reducing total fat intake results in small reductions in body fatness; this was seen in almost all included studies and was highly resistant to sensitivity analyses (GRADE high-consistency evidence, not downgraded). The effect of eating less fat (compared with higher fat intake) is a mean body weight reduction of 1.4 kg (95% confidence interval (CI) -1.7 to -1.1 kg, in 53,875 participants from 26 RCTs, I2 = 75%). The heterogeneity was explained in subgrouping and meta-regression. These suggested that greater weight loss results from greater fat reductions in people with lower fat intake at baseline, and people with higher body mass index (BMI) at baseline. The size of the effect on weight does not alter over time and is mirrored by reductions in BMI (MD -0.5 kg/m2, 95% CI -0.6 to -0.3, 46,539 participants in 14 trials, I2 = 21%), waist circumference (MD -0.5 cm, 95% CI -0.7 to -0.2, 16,620 participants in 3 trials; I2 = 21%), and percentage body fat (MD -0.3% body fat, 95% CI -0.6 to 0.00, P = 0.05, in 2350 participants in 2 trials; I2 = 0%). There was no suggestion of harms associated with low fat diets that might mitigate any benefits on body fatness. The reduction in body weight was reflected in small reductions in LDL (-0.13 mmol/L, 95% CI -0.21 to -0.05), and total cholesterol (-0.23 mmol/L, 95% CI -0.32 to -0.14), with little or no effect on HDL cholesterol (-0.02 mmol/L, 95% CI -0.03 to 0.00), triglycerides (0.01 mmol/L, 95% CI -0.05 to 0.07), systolic (-0.75 mmHg, 95% CI -1.42 to -0.07) or diastolic blood pressure(-0.52 mmHg, 95% CI -0.95 to -0.09), all GRADE high-consistency evidence or quality of life (0.04, 95% CI 0.01 to 0.07, on a scale of 0 to 10, GRADE low-consistency evidence). AUTHORS' CONCLUSIONS Trials where participants were randomised to a lower fat intake versus a higher fat intake, but with no intention to reduce weight, showed a consistent, stable but small effect of low fat intake on body fatness: slightly lower weight, BMI, waist circumference and percentage body fat compared with higher fat arms. Greater fat reduction, lower baseline fat intake and higher baseline BMI were all associated with greater reductions in weight. There was no evidence of harm to serum lipids, blood pressure or quality of life, but rather of small benefits or no effect.
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Affiliation(s)
- Lee Hooper
- Norwich Medical School, University of East Anglia, Norwich, UK
| | | | - Oluseyi F Jimoh
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Diane Bunn
- Norwich Medical School, University of East Anglia, Norwich, UK
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23
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Wali JA, Raubenheimer D, Senior AM, Le Couteur DG, Simpson SJ. Cardio-metabolic consequences of dietary carbohydrates: reconciling contradictions using nutritional geometry. Cardiovasc Res 2020; 117:386-401. [PMID: 32386289 DOI: 10.1093/cvr/cvaa136] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/27/2020] [Accepted: 05/02/2020] [Indexed: 02/07/2023] Open
Abstract
Carbohydrates are the major source of dietary energy, but their role in health and disease remains controversial. Recent epidemiological evidence suggests that the increased consumption of carbohydrates is associated with obesity and increased risk of mortality and dietary trials show that carbohydrate restriction leads to weight loss and improved glycaemic status in obese and diabetic subjects. In contrast, the diets of populations with long and healthy lifespans (e.g. traditional Okinawans from Japan) are high in carbohydrate and low in protein, and several clinical and preclinical studies have linked low-carbohydrate-high-protein diets with increased mortality risk. In this paper we attempt to reconcile these contradictory findings by moving beyond traditional single-nutrient analyses to consider the interactions between nutrients on health outcomes. We do so using the Geometric Framework (GF), a nutritional modelling platform that explicitly considers the main and interactive effects of multiple nutrients on phenotypic characteristics. Analysis of human data by GF shows that weight loss and improved cardio-metabolic outcomes under carbohydrate restriction derive at least in part from reduced caloric intake due to the concomitantly increased proportion of protein in the diet. This is because, as in many animals, a specific appetite for protein is a major driver of food intake in humans. Conversely, dilution of protein in the diet leverages excess food intake through compensatory feeding for protein ('protein leverage'). When protein is diluted in the diet by readily digestible carbohydrates and fats, as is the case in modern ultra-processed foods, protein leverage results in excess calorie intake, leading to rising levels of obesity and metabolic disease. However, when protein is diluted in the diet by increased quantities of less readily digestible forms of carbohydrate and fibre, energy balance is maintained and health benefits accrue, especially during middle age and early late-life. We argue that other controversies in carbohydrate research can be resolved using the GF methodology in dietary studies.
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Affiliation(s)
- Jibran A Wali
- Charles Perkins Centre, The University of Sydney, Camperdown, Sydney, New South Wales 2006, Australia.,Faculty of Science, School of Life and Environmental Sciences, The University of Sydney, Camperdown, Sydney, New South Wales 2006, Australia
| | - David Raubenheimer
- Charles Perkins Centre, The University of Sydney, Camperdown, Sydney, New South Wales 2006, Australia.,Faculty of Science, School of Life and Environmental Sciences, The University of Sydney, Camperdown, Sydney, New South Wales 2006, Australia
| | - Alistair M Senior
- Charles Perkins Centre, The University of Sydney, Camperdown, Sydney, New South Wales 2006, Australia.,Faculty of Science, School of Life and Environmental Sciences, The University of Sydney, Camperdown, Sydney, New South Wales 2006, Australia
| | - David G Le Couteur
- Charles Perkins Centre, The University of Sydney, Camperdown, Sydney, New South Wales 2006, Australia.,ANZAC Research Institute, The University of Sydney, Concord, Sydney, New South Wales 2139, Australia
| | - Stephen J Simpson
- Charles Perkins Centre, The University of Sydney, Camperdown, Sydney, New South Wales 2006, Australia.,Faculty of Science, School of Life and Environmental Sciences, The University of Sydney, Camperdown, Sydney, New South Wales 2006, Australia
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24
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Wan Y, Tang J, Li J, Li J, Yuan J, Wang F, Li D. Contribution of diet to gut microbiota and related host cardiometabolic health: diet-gut interaction in human health. Gut Microbes 2020; 11:603-609. [PMID: 31964203 PMCID: PMC7524383 DOI: 10.1080/19490976.2019.1697149] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Obesity and cardiometabolic diseases in both developed and developing counties in a state of nutrition transition are often related to diet, which also play a major role in shaping human gut microbiota. The human gut harbors diverse microbes that play an essential role in the well-being of their host. Complex interactions between diet and microorganisms may lead to beneficial or detrimental outcomes to host cardiometabolic health. Despite numerous studies using rodent models indicated that high-fat diet may disrupt protective functions of the intestinal barrier and contribute to inflammatory processes, evidence from population-based study is still limited. In our recent study of a 6-month randomized controlled-feeding trial, we showed that high-fat, low-carbohydrate diet was associated with unfavorable changes in gut microbiota, fecal microbial metabolites, and plasma proinflammatory factors in healthy young adults. Here, we provide an overview and extended discussion of our key findings, and outline important future directions.
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Affiliation(s)
- Yi Wan
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, USA
| | - Jun Tang
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Jiaomei Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China
| | - Jie Li
- No. 1 Department of Nutrition, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Jihong Yuan
- No. 1 Department of Nutrition, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Fenglei Wang
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, USA
| | - Duo Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China,CONTACT Duo Li Institute of Nutrition and Health, Qingdao University, 308 Ningxia Road, Qingdao266071, China
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25
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Bai L, Gao M, Cheng X, Kang G, Cao X, Huang H. Engineered butyrate-producing bacteria prevents high fat diet-induced obesity in mice. Microb Cell Fact 2020; 19:94. [PMID: 32334588 PMCID: PMC7183672 DOI: 10.1186/s12934-020-01350-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 04/13/2020] [Indexed: 12/14/2022] Open
Abstract
Background Obesity is a major problem worldwide and severely affects public safety. As a metabolite of gut microbiota, endogenous butyric acid participates in energy and material metabolism. Considering the serious side effects and weight regain associated with existing weight loss interventions, novel strategies are urgently needed for prevention and treatment of obesity. Results In the present study, we engineered Bacillus subtilis SCK6 to exhibited enhanced butyric acid production. Compared to the original Bacillus subtilis SCK6 strain, the genetically modified BsS-RS06550 strain had higher butyric acid production. The mice were randomly divided into four groups: a normal diet (C) group, a high-fat diet (HFD) group, an HFD + Bacillus subtilis SCK6 (HS) group and an HFD + BsS-RS06550 (HE) group. The results showed BsS-RS06550 decreased the body weight, body weight gain, and food intake of HFD mice. BsS-RS06550 had beneficial effects on blood glucose, insulin resistance and hepatic biochemistry. After the 14-week of experiment, fecal samples were collected for nontargeted liquid chromatography-mass spectrometry analysis to identify and quantify significant changes in metabolites. Sixteen potentially significant metabolites were screened, and BsS-RS06550 was shown to potentially regulate disorders in glutathione, methionine, tyrosine, phenylalanine, and purine metabolism and secondary bile acid biosynthesis. Conclusions In this study, we successfully engineered Bacillus subtilis SCK6 to have enhanced butyric acid production. The results of this work revealed that the genetically modified live bacterium BsS-RS06550 showed potential anti-obesity effects, which may have been related to regulating the levels of metabolites associated with obesity. These results indicate that the use of BsS-RS06550 may be a promising strategy to attenuate obesity.![]()
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Affiliation(s)
- Liang Bai
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, 300072, China
| | - Mengxue Gao
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, 300072, China
| | - Xiaoming Cheng
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, 300072, China
| | - Guangbo Kang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, 300072, China
| | - Xiaocang Cao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, 300052, China.
| | - He Huang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, 300072, China.
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26
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Overweight and underweight status are linked to specific gut microbiota and intestinal tricarboxylic acid cycle intermediates. Clin Nutr 2020; 39:3189-3198. [PMID: 32164980 DOI: 10.1016/j.clnu.2020.02.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 01/04/2020] [Accepted: 02/10/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND & AIMS Intestinal short-chain fatty acids have been demonstrated to modulate host energy metabolism and are elevated in overweight and obese individuals. We hypothesized that other intestinal energy products especially tricarboxylic acid (TCA) cycle intermediates might also related to overweight status. In addition, little information is available regarding to the potential relationship between gut microbiota and underweight status. Therefore, the aim of this study was to investigate whether gut microbiota and intestinal energy metabolites differ in underweight, normal weight, and overweight individuals, and their correlations with host cardiometabolic risk factors. SUBJECTS/METHODS Gut microbiome, intestinal energy metabolites, circulating cardiometabolic risk factors, and proinflammatory markers were determined in 29 underweight, 67 normal weight, and 67 overweight adults. RESULTS The fecal concentrations of succinic acid, fumaric acid, malic acid, propionic acid, and adipic acid were significantly increased in the overweight individuals in parallel with a higher relative abundance of Veillonellacea after adjusting for multiple comparisons (all p < 0.05). The intestinal concentration of TCA cycle intermediate succinic acid was positively associated with body weight (r = 0.28, p = 0.04), and malic acid were in positive association with circulating total cholesterol, low-density lipoprotein cholesterol, and interleukin-1β (all r > 0.25, p < 0.05). Compared with the normal weight individuals, the gut microbial α-diversity was lower in the overweight (p = 0.007 for Shannon index and p = 0.009 for Ace index) and underweight (p = 0.05 for Shannon index and p = 0.08 for Ace index) groups. However, no significant differences in the overall gut microbiota composition were observed among the three groups. CONCLUSIONS Our findings revealed that low gut microbiota diversity was associated with both overweight and underweight status. Intestinal TCA cycle intermediates were associated with overweight development and might be potential markers for future studies related to gut microbiota and host cardiometabolic health.
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Defining a Healthy Diet: Evidence for The Role of Contemporary Dietary Patterns in Health and Disease. Nutrients 2020; 12:nu12020334. [PMID: 32012681 PMCID: PMC7071223 DOI: 10.3390/nu12020334] [Citation(s) in RCA: 389] [Impact Index Per Article: 97.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/22/2020] [Accepted: 01/26/2020] [Indexed: 02/07/2023] Open
Abstract
The definition of what constitutes a healthy diet is continually shifting to reflect the evolving understanding of the roles that different foods, essential nutrients, and other food components play in health and disease. A large and growing body of evidence supports that intake of certain types of nutrients, specific food groups, or overarching dietary patterns positively influences health and promotes the prevention of common non-communicable diseases (NCDs). Greater consumption of health-promoting foods and limited intake of unhealthier options are intrinsic to the eating habits of certain regional diets such as the Mediterranean diet or have been constructed as part of dietary patterns designed to reduce disease risk, such as the Dietary Approaches to Stop Hypertension (DASH) or Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diets. In comparison with a more traditional Western diet, these healthier alternatives are higher in plant-based foods, including fresh fruits and vegetables, whole grains, legumes, seeds, and nuts and lower in animal-based foods, particularly fatty and processed meats. To better understand the current concept of a “healthy diet,” this review describes the features and supporting clinical and epidemiologic data for diets that have been shown to prevent disease and/or positively influence health. In total, evidence from epidemiological studies and clinical trials indicates that these types of dietary patterns reduce risks of NCDs including cardiovascular disease and cancer.
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Wang F, Wan Y, Yin K, Wei Y, Wang B, Yu X, Ni Y, Zheng J, Huang T, Song M, Li D. Lower Circulating Branched-Chain Amino Acid Concentrations Among Vegetarians are Associated with Changes in Gut Microbial Composition and Function. Mol Nutr Food Res 2019; 63:e1900612. [PMID: 31703241 DOI: 10.1002/mnfr.201900612] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 09/29/2019] [Indexed: 12/20/2022]
Abstract
SCOPE Vegetarian diets confer health benefits to many cardiometabolic diseases, although whether and how gut microbiota in vegetarians contributes to host metabolism remains unclear. Thus, the aim is to explore the possible links between the gut microbiota and circulating gut microbiota-host co-metabolites among vegetarians and omnivores. METHODS AND RESULTS Fecal and serum samples from 36 adults following a vegan, lacto-ovo vegetarian, or omnivorous diet are collected. A 16S rRNA gene, metagenome, metatranscriptome, and metabolome integrated multi-omics approach is adopted to profile fecal microbial composition and functionality and circulating gut microbiota-host co-metabolites. 16S rRNA gene and metagenomic sequencing suggest a significant difference in gut microbial composition between the two vegetarian groups and the omnivorous group at the family, genus, and species level. Metabolomic analysis reveals that circulating branched-chain amino acids (BCAAs)-valine, leucine, and isoleucine-are significantly lower in the two vegetarian groups than those in the omnivorous group. In line with the lower concentrations of BCAAs, metatranscriptomic analysis shows that the gut microbial pathway for the degradation of BCAAs is significantly upregulated among vegetarians compared with the omnivores. CONCLUSIONS The results indicate that gut microbiota plays an important role in the modulation of circulating BCAAs among vegetarians.
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Affiliation(s)
- Fenglei Wang
- Institute of Nutrition & Health, Qingdao University, Qingdao, 266071, China.,Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China.,Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Yi Wan
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China.,Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Kanhua Yin
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Yaguang Wei
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Beibei Wang
- State Key Laboratory of Rice Biology & Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiaomei Yu
- Department of Clinical Laboratory, Zhejiang Hospital, Hangzhou, 310007, China
| | - Yan Ni
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310052, China
| | - Jusheng Zheng
- Institute of Basic Medical Science, Westlake Institute for Advanced Study, Westlake University, Hangzhou, 310024, China
| | - Tao Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, 100191, China
| | - Mingyang Song
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, 02115, USA.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA.,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02108, USA.,Division of Gastroenterology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Duo Li
- Institute of Nutrition & Health, Qingdao University, Qingdao, 266071, China.,Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China
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29
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Mirmiran P, Ziadlou M, Karimi S, Hosseini-Esfahani F, Azizi F. The association of dietary patterns and adherence to WHO healthy diet with metabolic syndrome in children and adolescents: Tehran lipid and glucose study. BMC Public Health 2019; 19:1457. [PMID: 31694610 PMCID: PMC6833201 DOI: 10.1186/s12889-019-7779-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 10/14/2019] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND The optimal dietary pattern for reducing the extent of metabolic syndrome (MetS) has not been well established yet. The aim of this study was to evaluate dietary patterns and adherence to WHO healthy diet in children and adolescents and their associations with MetS. METHODS Subjects of this cohort study were selected from among children and adolescents of the Tehran Lipid and Glucose Study participants, aged 6-18 years (n = 424). Dietary measurements were collected using a valid and reliable food frequency questionnaire. MetS was defined as the existence of at least 3 risk factors according to the Cook criteria. Diet was assessed based on dietary components of the WHO healthy diet. Dietary patterns were defined by principal component analysis. RESULTS The mean ± SD age of participants (42% boys and 57% girls) was 13.5 ± 3.7 years. The most consistency with the WHO healthy diet was observed for cholesterol, free sugar and protein consumption in both genders, and the least was for n-3 poly-unsaturated fatty acid, trans-fatty acid and salt. Intake of SFA up to 12% of energy intake (third quartile) reduced the risk of MetS, compared to the first quartile. Subjects in the third quartile of n-6 poly-unsaturated fatty acid intake (6.2% of energy) showed the lowest odds ratio of MetS compared to the first quartile (OR: 0.18, CI: 0.04-0.66). In the adjusted model, the risk of MetS reduced across quartiles of MUFA intake by 60% (OR: 1, 0.40, 0.40, 0.42; P trend = 0.05). No significant trends were observed in the risk of MetS components across quartiles of the WHO healthy diet components. Three major dietary patterns were identified, the healthy, unhealthy and cereal/meat. An increased risk of MetS was observed in the highest quartile of unhealthy dietary pattern score compared to the lowest quartile (OR: 1, 0.81, 0.93, 2.49; P trend = 0.03). CONCLUSIONS Our results demonstrated that the majority of our population did not meet some components of WHO healthy diet recommendations. The quality and quantity of fatty acid intakes were associated with risk of MetS. Adherence to unhealthy dietary pattern was associated with two-fold increase in MetS risk.
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Affiliation(s)
- Parvin Mirmiran
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Maryam Ziadlou
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sara Karimi
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Firoozeh Hosseini-Esfahani
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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30
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Wan Y, Wang F, Yuan J, Li J, Jiang D, Zhang J, Li H, Wang R, Tang J, Huang T, Zheng J, Sinclair AJ, Mann J, Li D. Effects of dietary fat on gut microbiota and faecal metabolites, and their relationship with cardiometabolic risk factors: a 6-month randomised controlled-feeding trial. Gut 2019; 68:1417-1429. [PMID: 30782617 DOI: 10.1136/gutjnl-2018-317609] [Citation(s) in RCA: 371] [Impact Index Per Article: 74.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/03/2018] [Accepted: 12/08/2018] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To investigate whether diets differing in fat content alter the gut microbiota and faecal metabolomic profiles, and to determine their relationship with cardiometabolic risk factors in healthy adults whose diet is in a transition from a traditional low-fat diet to a diet high in fat and reduced in carbohydrate. METHODS In a 6-month randomised controlled-feeding trial, 217 healthy young adults (aged 18-35 years; body mass index <28 kg/m2; 52% women) who completed the whole trial were included. All the foods were provided during the intervention period. The three isocaloric diets were: a lower-fat diet (fat 20% energy), a moderate-fat diet (fat 30% energy) and a higher-fat diet (fat 40% energy). The effects of the dietary interventions on the gut microbiota, faecal metabolomics and plasma inflammatory factors were investigated. RESULTS The lower-fat diet was associated with increased α-diversity assessed by the Shannon index (p=0.03), increased abundance of Blautia (p=0.007) and Faecalibacterium (p=0.04), whereas the higher-fat diet was associated with increased Alistipes (p=0.04), Bacteroides (p<0.001) and decreased Faecalibacterium (p=0.04). The concentration of total short-chain fatty acids was significantly decreased in the higher-fat diet group in comparison with the other groups (p<0.001). The cometabolites p-cresol and indole, known to be associated with host metabolic disorders, were decreased in the lower-fat diet group. In addition, the higher-fat diet was associated with faecal enrichment in arachidonic acid and the lipopolysaccharide biosynthesis pathway as well as elevated plasma proinflammatory factors after the intervention. CONCLUSION Higher-fat consumption by healthy young adults whose diet is in a state of nutrition transition appeared to be associated with unfavourable changes in gut microbiota, faecal metabolomic profiles and plasma proinflammatory factors, which might confer adverse consequences for long-term health outcomes. TRIAL REGISTRATION NUMBER NCT02355795; Results.
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Affiliation(s)
- Yi Wan
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Fenglei Wang
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China.,Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, USA
| | - Jihong Yuan
- No. 1 Department of Nutrition, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Jie Li
- No. 1 Department of Nutrition, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Dandan Jiang
- No. 1 Department of Nutrition, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Jingjing Zhang
- Department of Gastroenterology, School of Medicine, Zhejiang University, Hangzhou, China
| | - Hao Li
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Ruoyi Wang
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China.,Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, USA
| | - Jun Tang
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Tao Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Jusheng Zheng
- Institute of Basic Medical Science, Westlake University, Hangzhou, China
| | - Andrew J Sinclair
- Department of Nutrition, Dietetics and Food, Monash University, Melbourne, Australia
| | - Jim Mann
- Department of Human Nutrition and Medicine, University of Otago, Otago, New Zealand
| | - Duo Li
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China.,Institute of Nutrition and Health, Qingdao University, Qingdao, China
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31
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Qian L, Gao R, Huang J, Qin H. Supplementation of triple viable probiotics combined with dietary intervention is associated with gut microbial improvement in humans on a high-fat diet. Exp Ther Med 2019; 18:2262-2270. [PMID: 31452713 DOI: 10.3892/etm.2019.7801] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 06/20/2019] [Indexed: 12/13/2022] Open
Abstract
Numerous animal studies have demonstrated that oral probiotics may have a beneficial role in preventing obesity, inflammatory bowel disease and even colorectal cancer, which are all associated with a high-fat diet (HFD). However, the underlying beneficial effects of combined probiotic and dietary intervention on the gut microbiota of 'non-patient' individuals previously on an HFD have yet to be fully elucidated. In the present study, fecal samples were obtained from 36 volunteers on a high-fat diet and after dietary intervention for 4 months, and 16S rDNA sequencing was applied to identify how probiotics and dietary intervention had altered the composition of the microbiota. The results demonstrated that probiotics treatment and dietary intervention in combination raised the diversity of lumen microbes compared with their individual applications. A markedly separated distribution (β-diversity) was observed, confirming the difference in gut microbiota composition among the treatment groups. Bacterial taxonomic analysis demonstrated that the relative abundance of 30 species was altered among the groups following dietary intervention and/or probiotic supplementation. The majority of the species that exhibited a population increase belonged to two butyrate-producing families, Ruminococcaceae and Lachnospiraceae, whereas the species with reduced populations mainly belonged to the Bacteroidaceae family. Collectively, these results suggest that combined probiotic and dietary intervention is able to improve the gut microbiota composition of human subjects on an HFD.
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Affiliation(s)
- Leimin Qian
- Department of Gastrointestinal Surgery, Jiangyin People's Hospital, Jiangyin, Jiangsu 214400, P.R. China
| | - Renyuan Gao
- Department of General Surgery, The Tenth People's Hospital Affiliated to Tongji University, Shanghai 200072, P.R. China
| | - Jianming Huang
- Department of Gastrointestinal Surgery, Jiangyin People's Hospital, Jiangyin, Jiangsu 214400, P.R. China
| | - Huanlong Qin
- Department of General Surgery, The Tenth People's Hospital Affiliated to Tongji University, Shanghai 200072, P.R. China
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32
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Risk Factors for Unhealthy Weight Gain and Obesity among Children with Autism Spectrum Disorder. Int J Mol Sci 2019; 20:ijms20133285. [PMID: 31277383 PMCID: PMC6650879 DOI: 10.3390/ijms20133285] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/01/2019] [Accepted: 07/03/2019] [Indexed: 02/06/2023] Open
Abstract
Autism Spectrum Disorder (ASD) is a developmental disorder characterized by social and communication deficits and repetitive behaviors. Children with ASD are also at a higher risk for developing overweight or obesity than children with typical development (TD). Childhood obesity has been associated with adverse health outcomes, including insulin resistance, diabetes, heart disease, and certain cancers. Importantly some key factors that play a mediating role in these higher rates of obesity include lifestyle factors and biological influences, as well as secondary comorbidities and medications. This review summarizes current knowledge about behavioral and lifestyle factors that could contribute to unhealthy weight gain in children with ASD, as well as the current state of knowledge of emerging risk factors such as the possible influence of sleep problems, the gut microbiome, endocrine influences and maternal metabolic disorders. We also discuss some of the clinical implications of these risk factors and areas for future research.
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33
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Naude CE, Schoonees A, Nguyen KA, Senekal M, Young T, Garner P, Chaplin M, Volmink J. Low carbohydrate versus balanced carbohydrate diets for reducing weight and cardiovascular risk. Hippokratia 2019. [DOI: 10.1002/14651858.cd013334] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Celeste E Naude
- Stellenbosch University; Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences; Francie van Zijl Drive Cape Town South Africa
| | - Anel Schoonees
- Stellenbosch University; Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences; Francie van Zijl Drive Cape Town South Africa
| | - Kim A Nguyen
- Stellenbosch University; Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences; Francie van Zijl Drive Cape Town South Africa
| | - Marjanne Senekal
- University of Cape Town; Division of Human Nutrition, Faculty of Health Sciences; Cape Town South Africa
| | - Taryn Young
- Stellenbosch University; Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences; Francie van Zijl Drive Cape Town South Africa
| | - Paul Garner
- Liverpool School of Tropical Medicine; Department of Clinical Sciences; Liverpool UK L3 5QA UK
| | - Marty Chaplin
- Liverpool School of Tropical Medicine; Department of Clinical Sciences; Liverpool UK L3 5QA UK
| | - Jimmy Volmink
- Stellenbosch University; Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences; Francie van Zijl Drive Cape Town South Africa
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34
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Hjorth MF, Bray GA, Zohar Y, Urban L, Miketinas DC, Williamson DA, Ryan DH, Rood J, Champagne CM, Sacks FM, Astrup A. Pretreatment Fasting Glucose and Insulin as Determinants of Weight Loss on Diets Varying in Macronutrients and Dietary Fibers-The POUNDS LOST Study. Nutrients 2019; 11:nu11030586. [PMID: 30861997 PMCID: PMC6470525 DOI: 10.3390/nu11030586] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 12/20/2022] Open
Abstract
Efforts to identify a preferable diet for weight management based on macronutrient composition have largely failed, but recent evidence suggests that satiety effects of carbohydrates may depend on the individual's insulin-mediated cellular glucose uptake. Therefore, using data from the POUNDS LOST trial, pre-treatment fasting plasma glucose (FPG), fasting insulin (FI), and homeostatic model assessment of insulin resistance (HOMA-IR) were studied as prognostic markers of long-term weight loss in four diets differing in carbohydrate, fat, and protein content, while assessing the role of dietary fiber intake. Subjects with FPG <100 mg/dL lost 2.6 (95% CI 0.9;4.4, p = 0.003) kg more on the low-fat/high-protein (n = 132) compared to the low-fat/average-protein diet (n = 136). Subjects with HOMA-IR ≥4 lost 3.6 (95% CI 0.2;7.1, p = 0.038) kg more body weight on the high-fat/high-protein (n = 35) compared to high-fat/average-protein diet (n = 33). Regardless of the randomized diet, subjects with prediabetes and FI below the median lost 5.6 kg (95% CI 0.6;10.6, p = 0.030) more when consuming ≥35 g (n = 15) compared to <35 g dietary fiber/10 MJ (n = 16). Overall, subjects with normal glycemia lost most on the low-fat/high-protein diet, subjects with high HOMA-IR lost most on the high-fat/high protein diet, and subjects with prediabetes and low FI had particular benefit from dietary fiber in the diet.
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Affiliation(s)
- Mads F Hjorth
- Department of Nutrition, Exercise and Sports, Faculty of Sciences, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark.
| | - George A Bray
- Pennington Biomedical Research Center of the Louisiana State University System, Baton Rouge, LA 70803, USA.
| | | | | | - Derek C Miketinas
- Pennington Biomedical Research Center of the Louisiana State University System, Baton Rouge, LA 70803, USA.
- School of Nutrition and Food Sciences, Texas Woman's University, Denton, TX 76204, USA.
| | - Donald A Williamson
- Pennington Biomedical Research Center of the Louisiana State University System, Baton Rouge, LA 70803, USA.
| | - Donna H Ryan
- Pennington Biomedical Research Center of the Louisiana State University System, Baton Rouge, LA 70803, USA.
| | - Jennifer Rood
- Pennington Biomedical Research Center of the Louisiana State University System, Baton Rouge, LA 70803, USA.
| | - Catherine M Champagne
- Pennington Biomedical Research Center of the Louisiana State University System, Baton Rouge, LA 70803, USA.
| | - Frank M Sacks
- Nutrition Department, Harvard T.H Chan School of Public Health and Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.
| | - Arne Astrup
- Department of Nutrition, Exercise and Sports, Faculty of Sciences, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark.
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35
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Wan Y, Yuan J, Li J, Li H, Zhang J, Tang J, Ni Y, Huang T, Wang F, Zhao F, Li D. Unconjugated and secondary bile acid profiles in response to higher-fat, lower-carbohydrate diet and associated with related gut microbiota: A 6-month randomized controlled-feeding trial. Clin Nutr 2019; 39:395-404. [PMID: 30876827 DOI: 10.1016/j.clnu.2019.02.037] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 01/09/2019] [Accepted: 02/22/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Observational studies have shown that diets high in fat and low in dietary fiber, might have an unfavorable impact on bile acid (BA) profiles, which might further affect host cardiometabolic health. In the current study, we aimed to evaluate the effects of dietary fat content on BA profiles and associated gut microbiota, and their correlates with cardiometabolic risk factors. METHODS In a randomized controlled-feeding trial, healthy young adults were assigned to one of the three diets: a lower-fat diet (fat 20%, carbohydrate 66% and protein 14%), a moderate-fat diet (fat 30%, carbohydrate 56% and protein 14%) and a higher-fat diet (fat 40%, carbohydrate 46% and protein 14%) for 6 months. All the foods were provided during the entire intervention period. The BA profiles, associated gut microbiota and markers of cardiometabolic risk factors were determined before and after intervention. RESULTS The higher-fat diet resulted in an elevated concentration of total BAs (p < 0.001), and unconjugated BAs (p = 0.03) compared with lower-fat diet. Secondary BAs, such as deoxycholic acid (DCA), taurodeoxycholic acid (TDCA), 12ketolithocholic acid (12keto-LCA), 3β-DCA and taurolithocholic acid (TLCA) (p < 0.05 after FDR correction) were significantly increased in the higher-fat diet group after the 6-month intervention. Consistently, the abundances of gut bacteria (Bacteroides, Clostridium, Bifidobacterium and Lactobacillus) which affect bile salt hydrolase gene expression were significantly increased after higher-fat consumption. The change of DCA was positively associated with the relative abundance of Bacteroides (r = 0.31, p = 0.08 after FDR correction). In addition, the changes of fecal concentrations of DCA and 12keto-LCA were positively associated with serum total cholesterol (r > 0.3, p = 0.02 and p = 0.008 after FDR correction, respectively). In line with these findings, serum fibroblast growth factor 19 (FGF19) was marginally significantly elevated in the higher-fat group after intervention (p = 0.05). CONCLUSIONS The higher-fat diet resulted in an alteration of BAs, especially unconjugated BAs and secondary BAs, most likely through actions of gut microbiota. These alterations might confer potentially unfavorable impacts on colonic and host cardiometabolic health in healthy young adults. Clinical trial registry number: NCT02355795 listed on NIH website: ClinicalTrials.gov.
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Affiliation(s)
- Yi Wan
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China
| | - Jihong Yuan
- No. 1 Department of Nutrition, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Jie Li
- No. 1 Department of Nutrition, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Hao Li
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China
| | - Jingjing Zhang
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Jun Tang
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China
| | - Yan Ni
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou 310024, China
| | - Tao Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, 100191, China
| | - Fenglei Wang
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China; Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Feng Zhao
- Institute of Nutrition and Health, Qingdao University, Qingdao, 266071, China.
| | - Duo Li
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China; Institute of Nutrition and Health, Qingdao University, Qingdao, 266071, China.
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36
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Yang B, Shi L, Wang AM, Shi MQ, Li ZH, Zhao F, Guo XJ, Li D. Lowering Effects of n-3 Fatty Acid Supplements on Blood Pressure by Reducing Plasma Angiotensin II in Inner Mongolia Hypertensive Patients: A Double-Blind Randomized Controlled Trial. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:184-192. [PMID: 30511840 DOI: 10.1021/acs.jafc.8b05463] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Whether n-3 fatty acid (FA) has hypotensive actions among Chinese adults remains inconclusive. Hypertensive patients from Inner Mongolia, China ( n = 126) were recruited to a double-blind, randomized controlled trial. We investigated the effects of n-3 FA supplements on blood pressure (BP, mm Hg), plasma concentrations of angiotensin II (Ang II, pg/mL), and nitric oxygen (NO, μmol/L), using fish oil ( n = 41, 4 capsules/day, equivalent to 2 g of eicosapentaenoic acid plus docosahexaenoic acid) and flaxseed oil ( n = 42, 4 capsules/day, equivalent to 2.5 g of α-linolenic acid). Comparing to the control group (corn oil, n = 43), the mean systolic BP (-4.52 ± 9.28 vs -1.51 ± 9.23, P = 0.040) and the plasma Ang II levels (-12.68 ± 10.87 vs -4.93 ± 9.08, P = 0.023) were significantly lowered in the fish oil group, whereas diastolic BP ( P = 0.285) and plasma NO levels ( P = 0.220) were not. Such findings suggest that marine-based n-3 FA has a hypotensive efficacy in Chinese hypertensive patients possibly through inhibiting Ang II-dependent vasoconstrictions.
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Affiliation(s)
- Bo Yang
- Institute of Lipids Medicine , Wenzhou Medical University , Chashan University Town, Wenzhou , China 325035
- Department of Food Science and Nutrition , Zhejiang University , Hangzhou , China 310029
| | - Lin Shi
- Ejin Horo Banner Centre for Disease Prevention and Control, Ordos , Inner Mongolia , China 017200
| | - Ai-Min Wang
- Ejin Horo Banner Centre for Disease Prevention and Control, Ordos , Inner Mongolia , China 017200
| | - Mei-Qi Shi
- Department of Food Science and Nutrition , Zhejiang University , Hangzhou , China 310029
| | - Zi-Hao Li
- Department of Food Science and Nutrition , Zhejiang University , Hangzhou , China 310029
| | - Feng Zhao
- Institute of Nutrition and Health , Qingdao University , 308 Ningxia Road , Qingdao , China 266003
| | - Xiao-Juan Guo
- Institute of Lipids Medicine , Wenzhou Medical University , Chashan University Town, Wenzhou , China 325035
| | - Duo Li
- Institute of Nutrition and Health , Qingdao University , 308 Ningxia Road , Qingdao , China 266003
- Department of Food Science and Nutrition , Zhejiang University , Hangzhou , China 310029
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37
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Wang KW, Xiao BQ, Li BH, Liu YY, Wei ZY, Rao JH, Chen JH. Effects of fat-to-sugar ratio in excess dietary energy on lipid abnormalities: a 7-month prospective feeding study in adult cynomolgus monkeys. Lipids Health Dis 2019; 18:1. [PMID: 30611256 PMCID: PMC6320598 DOI: 10.1186/s12944-018-0950-y] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 12/17/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Excess energy intake contributes to metabolic disorders. However, the relationship between excess sugar and fat in their contributions to metabolic abnormalities remains to be further elucidated. Here we conducted a prospective feeding experiment to evaluate effects of dietary fat-to-sugar ratio on diet-induced metabolic abnormalities in adult cynomolgus monkeys. METHODS Four groups of adult cynomolgus monkeys were fed regular chow plus emulsion with combinations of high sugar (HS) or low sugar (HS) and low fat (LF) or high fat (HF) for 7 months. Plasma levels of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglyceride (TG) and blood glucose were measured for all the four groups of animals during the experiment. RESULTS Plasma levels of TC and LDL-C gradually increased in all 4 diets groups, with the highest increase found in the LSHF group compared to the other three groups (P = 0.0018 and P = 0.0005 respectively). HF induced increased fasting glucose (P = 0.0077) and HS induced higher TG (P = 0.0227) respectively. Intriguingly, HSHF led to dramatically smaller magnitude of increase in LDL-C and TC levels compared to LSHF, while such difference was absent between the LSLF and LSHF groups. Our findings thus indicate interactive effects of HS and HF on TC and LDL-C. In addition, HF exhibited stronger effects on lipid abnormalities than HS. CONCLUSIONS In the current study, our prospective feeding experiment in adult cynomolgus monkeys revealed effects of different fat-to-sugar ratios on diet-induced metabolic abnormalities. Furthermore, our findings suggest that not only excess dietary energy but also the balance of dietary fat-to-sugar ratio matters in diet-induced lipid abnormalities.
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Affiliation(s)
- Ke-Wei Wang
- Department for hospital infection, Affiliated Hospital of Jiangnan University (Wuxi Third People's Hospital), Wuxi, 214041, Jiangsu, China
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, Jiangsu, China
- Joint Primate Research Center for Chronic Diseases, Jiangnan University and Guangdong Institute of Applied Biological Resources, Jiangnan University, No 1800 Lihu Avenue, Wuxi, Jiangsu, Wuxi, 214122, Jiangsu, China
- School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu, China
| | - Bai-Quan Xiao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, 105 Xingang Rd. West, Guangzhou, 510260, Guangdong, China
- Guangdong Public Laboratory of Wild Animal Conservation and Utilization, 105 Xingang Rd. West, Guangzhou, Guangdong, China
- Guangdong Institute of Applied Biological Resources, 105 Xingang Rd. West, Guangzhou, Guangdong, China
| | - Bi-Hai Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, 105 Xingang Rd. West, Guangzhou, 510260, Guangdong, China
- Guangdong Public Laboratory of Wild Animal Conservation and Utilization, 105 Xingang Rd. West, Guangzhou, Guangdong, China
- Guangdong Institute of Applied Biological Resources, 105 Xingang Rd. West, Guangzhou, Guangdong, China
| | - Yi-Yan Liu
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, 105 Xingang Rd. West, Guangzhou, 510260, Guangdong, China
- Guangdong Public Laboratory of Wild Animal Conservation and Utilization, 105 Xingang Rd. West, Guangzhou, Guangdong, China
- Guangdong Institute of Applied Biological Resources, 105 Xingang Rd. West, Guangzhou, Guangdong, China
| | - Zhi-Yuan Wei
- Department for hospital infection, Affiliated Hospital of Jiangnan University (Wuxi Third People's Hospital), Wuxi, 214041, Jiangsu, China
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, Jiangsu, China
- Joint Primate Research Center for Chronic Diseases, Jiangnan University and Guangdong Institute of Applied Biological Resources, Jiangnan University, No 1800 Lihu Avenue, Wuxi, Jiangsu, Wuxi, 214122, Jiangsu, China
- School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu, China
| | - Jun-Hua Rao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, 105 Xingang Rd. West, Guangzhou, 510260, Guangdong, China.
- Guangdong Public Laboratory of Wild Animal Conservation and Utilization, 105 Xingang Rd. West, Guangzhou, Guangdong, China.
- Guangdong Institute of Applied Biological Resources, 105 Xingang Rd. West, Guangzhou, Guangdong, China.
| | - Jian-Huan Chen
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, Jiangsu, China.
- Joint Primate Research Center for Chronic Diseases, Jiangnan University and Guangdong Institute of Applied Biological Resources, Jiangnan University, No 1800 Lihu Avenue, Wuxi, Jiangsu, Wuxi, 214122, Jiangsu, China.
- School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu, China.
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38
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Song G, Wang Y, Chen X, Pang S, Miao H, Li A, Wang W. Influences of ratio of macro-nutrients intake to human and animals: an overview. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2018.1561832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Ge Song
- Academy of State Administration of Grain, Beijing, People’s Republic of China
| | - Yong Wang
- Academy of State Administration of Grain, Beijing, People’s Republic of China
| | - Xi Chen
- Academy of State Administration of Grain, Beijing, People’s Republic of China
| | - Shaojie Pang
- Academy of State Administration of Grain, Beijing, People’s Republic of China
| | - Haijiang Miao
- Academy of State Administration of Grain, Beijing, People’s Republic of China
| | - Aike Li
- Academy of State Administration of Grain, Beijing, People’s Republic of China
| | - Weiwei Wang
- Academy of State Administration of Grain, Beijing, People’s Republic of China
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39
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Yang B, Shi MQ, Li ZH, Shi L, Wang AM, Guo XJ, Li D. Effects of n-3 fatty acid supplements on cardiometabolic profiles in hypertensive patients with abdominal obesity in Inner Mongolia: a randomized controlled trial. Food Funct 2019; 10:1661-1670. [DOI: 10.1039/c8fo01707g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Daily supplementation with n-3 fatty acid (FA) has been believed to be an adjunct or alternative to drug treatments to reduce blood pressure (BP) and triglyceride (TG) levels in western patients with high risk of cardiovascular disease.
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Affiliation(s)
- Bo Yang
- Institute of Lipids Medicine
- Wenzhou Medical University
- Wenzhou
- China
| | - Mei-qi Shi
- Department of Food Science and Nutrition
- Zhejiang University
- Hangzhou
- China
| | - Zi-hao Li
- Department of Food Science and Nutrition
- Zhejiang University
- Hangzhou
- China
| | - Lin Shi
- Ejin Horo Banner Centre for Disease Prevention and Control
- Ordos
- China
| | - Ai-min Wang
- Ejin Horo Banner Centre for Disease Prevention and Control
- Ordos
- China
| | - Xiao-juan Guo
- Institute of Lipids Medicine
- Wenzhou Medical University
- Wenzhou
- China
| | - Duo Li
- Department of Food Science and Nutrition
- Zhejiang University
- Hangzhou
- China
- Institute of Nutrition & Health
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40
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Wan Y, Tong W, Zhou R, Li J, Yuan J, Wang F, Li D. Habitual animal fat consumption in shaping gut microbiota and microbial metabolites. Food Funct 2019; 10:7973-7982. [PMID: 31776537 DOI: 10.1039/c9fo01490j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A diet with higher animal-based fat consumption is likely to be associated with moderately unfavorable impacts on gut microbial diversity, community, and regulation of fecal short-chain fatty acids.
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Affiliation(s)
- Yi Wan
- Institute of Nutrition and Health
- Qingdao University
- Qingdao
- China
- Department of Food Science and Nutrition
| | - Wenfeng Tong
- Department of Food Science and Nutrition
- Zhejiang University
- Hangzhou
- China
| | - Renke Zhou
- Department of Food Science and Nutrition
- Zhejiang University
- Hangzhou
- China
| | - Jie Li
- Department of Nutrition
- Chinese People's Liberation Army General Hospital
- Beijing
- China
| | - Jihong Yuan
- Department of Nutrition
- Chinese People's Liberation Army General Hospital
- Beijing
- China
| | - Fenglei Wang
- Department of Food Science and Nutrition
- Zhejiang University
- Hangzhou
- China
| | - Duo Li
- Institute of Nutrition and Health
- Qingdao University
- Qingdao
- China
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41
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Effects of carbohydrate-restricted diets on low-density lipoprotein cholesterol levels in overweight and obese adults: a systematic review and meta-analysis. Nutr Rev 2018; 77:161-180. [DOI: 10.1093/nutrit/nuy049] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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42
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Shimizu K, Saito H, Sumi K, Sakamoto Y, Tachi Y, Iida K. Short-term and long-term ketogenic diet therapy and the addition of exercise have differential impacts on metabolic gene expression in the mouse energy-consuming organs heart and skeletal muscle. Nutr Res 2018; 60:77-86. [DOI: 10.1016/j.nutres.2018.09.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 09/06/2018] [Accepted: 09/14/2018] [Indexed: 11/24/2022]
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43
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Ha K, Joung H, Song Y. Low-carbohydrate diet and the risk of metabolic syndrome in Korean adults. Nutr Metab Cardiovasc Dis 2018; 28:1122-1132. [PMID: 30139686 DOI: 10.1016/j.numecd.2018.06.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 06/11/2018] [Accepted: 06/11/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS The association of low-carbohydrate diet with weight loss and the risk of cardiovascular diseases has recently been the focus of increasing research attention. However, studies on low-carbohydrate diet in the Asian population are limited. The present study was aimed to examine the association between low-carbohydrate diet and metabolic syndrome among Korean adults. METHODS AND RESULTS A total of 16,349 participants aged 30 years or older who participated in a 24-h dietary recall survey of the fifth and sixth Korea National Health and Nutrition Examination Survey were included in this study. Low-carbohydrate diet was evaluated using the low-carbohydrate-diet score, which was calculated based on the percentage of energy from carbohydrate, protein, and fat by sex. The association between the low-carbohydrate-diet score and metabolic syndrome was analyzed using multiple logistic regression analysis. A low-carbohydrate diet was not associated with metabolic syndrome and its components such as waist circumference, blood pressure, and triglyceride levels. However, women in the highest decile of the animal- or plant-based low-carbohydrate-diet score showed a decreased risk of reduced high-density lipoprotein (HDL)-cholesterol levels, and men in the highest decile of the animal-based low-carbohydrate-diet score showed a decreased risk of reduced HDL-cholesterol levels than those in the lowest decile of the low-carbohydrate-diet score. CONCLUSION These findings indicate that, in Korea, a low-carbohydrate diet did not increase the risk of metabolic syndrome among adults who typically consume a high-carbohydrate low-fat diet. However, it may moderately decrease the risk of reduced HDL-cholesterol levels.
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Affiliation(s)
- K Ha
- Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - H Joung
- Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Y Song
- Major of Food and Nutrition, School of Human Ecology, The Catholic University of Korea, Gyeonggi, Republic of Korea.
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44
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Hjorth MF, Zohar Y, Hill JO, Astrup A. Personalized Dietary Management of Overweight and Obesity Based on Measures of Insulin and Glucose. Annu Rev Nutr 2018; 38:245-272. [PMID: 29856931 PMCID: PMC9105825 DOI: 10.1146/annurev-nutr-082117-051606] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
During the past several decades, numerous trials have compared various diets for the management of overweight and obesity, assuming that a single dietary strategy would be appropriate for all individuals. These studies have failed to provide strong evidence for the efficacy of any particular diet, and it is likely that different people will have different levels of success on different diets. We identified studies investigating pretreatment glycemia or insulinemia status, or both, of the individual as prognostic markers of weight loss during periods in which the composition of a participant's diet was known. Overall, research suggests that providing specific diets for weight management based on pretreatment glycemia and insulinemia statuses holds great promise for advancing personalized nutrition.
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Affiliation(s)
- Mads F Hjorth
- Department of Nutrition, Exercise, and Sports, Faculty of Sciences, University of Copenhagen, 1958 Frederiksberg C, Denmark; ,
| | | | - James O Hill
- Colorado Nutrition Obesity Research Center, University of Colorado Denver, Aurora, Colorado 80045, USA;
| | - Arne Astrup
- Department of Nutrition, Exercise, and Sports, Faculty of Sciences, University of Copenhagen, 1958 Frederiksberg C, Denmark; ,
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45
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Othman F, Mohamad Nor NS, Appannah G, Zaki NAM, Ambak R, Omar A, Fazliana M, Salleh R, Yusof BNM, Muksan N, Aris T. Prediction of body fat loss in relation to change in nutrient intake among housewives participating in the MyBFF@home study. BMC Womens Health 2018; 18:102. [PMID: 30066632 PMCID: PMC6069758 DOI: 10.1186/s12905-018-0594-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Diet compositions are likely to be one of the influential factors for body fat deposition. The aim of this paper was to determine the nutrient changes and its association to body fat loss among the overweight and obese housewives in the MyBFF@home study. METHODS Data of participants in the MyBFF@home study (intervention and control groups) were analysed. Participants in the intervention group received personalised dietary counselling consisted of reduced calorie diet 1200-1500 kcal/day, while the control group was assigned to receive women's health seminars. The dietary assessment was done during the intervention phase at baseline, 1 month (m), 2 m, 3 m and 6 m using a 3-day food diary. Body fat was measured using a bioelectrical impedance analyser (In-body 720) at baseline and at the end of the intervention phase. The mean differences of nutrient intake and body compositions during the intervention phase were measured with paired t-test. The changes in body fat and nutrients intake were calculated by subtracting baseline measurements from those taken at 6 months. Multiple linear regression analysis was conducted to determine the extent to which the changes in each gram of nutrients per 1000 kcal were predictive of changes in body fat mass. RESULTS There were significant reductions in energy, all macronutrients, dietary fibre, calcium and iron intake in both study groups after the intervention phase (p < 0.05). In the intervention group, body fat loss increased with the reduction of each gram of carbohydrate, protein and fat per 1000 kcal, (p < 0.05), and decreased with the reduction of each gram of calcium and fibre intake per 1000 kcal (p < 0.05). In the control group, body fat loss increased with the reduction of each gram fat per 1000 kcal (p < 0.05) and decreased with the reduction of each gram iron per 1000 kcal. CONCLUSION Changes in the intake of various nutrients have different effects on body fat loss between the intervention and control group.
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Affiliation(s)
- Fatimah Othman
- Centre for Nutrition Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, Jalan Bangsar, 50590 Kuala Lumpur, Malaysia
| | - Noor Safiza Mohamad Nor
- Centre for Nutrition Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, Jalan Bangsar, 50590 Kuala Lumpur, Malaysia
| | - Geeta Appannah
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Nor Azian Mohd Zaki
- Centre for Nutrition Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, Jalan Bangsar, 50590 Kuala Lumpur, Malaysia
| | - Rashidah Ambak
- Centre for Nutrition Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, Jalan Bangsar, 50590 Kuala Lumpur, Malaysia
| | - Azahadi Omar
- Centre for Nutrition Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, Jalan Bangsar, 50590 Kuala Lumpur, Malaysia
| | - Mansor Fazliana
- Diabetes and Endocrine Unit, Cardiovascular, Diabetes and Nutrition Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Ruhaya Salleh
- Centre for Nutrition Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, Jalan Bangsar, 50590 Kuala Lumpur, Malaysia
| | - Barakatun Nisak Mohd Yusof
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | | | - Tahir Aris
- Centre for Nutrition Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, Jalan Bangsar, 50590 Kuala Lumpur, Malaysia
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46
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Thorning TK, Fabre O, Legrand R, Astrup A, Hjorth MF. Weight loss and weight loss maintenance efficacy of a novel weight loss program: The retrospective RNPC ® cohort. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.obmed.2018.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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47
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Li D. Is it really good for you to eat fat as much as you could? SCIENCE CHINA. LIFE SCIENCES 2018; 61:363-364. [PMID: 29143278 DOI: 10.1007/s11427-017-9194-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 10/27/2017] [Indexed: 06/07/2023]
Affiliation(s)
- Duo Li
- Institute of Nutrition & Health, Qingdao University, Qingdao, 266071, China.
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48
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Elmadfa I, Meyer AL. The Debate Goes on: New Evidence for the Role of Macronutrient Distribution on Body Weight Development: A Commentary on "Effects of Macronutrient Distribution on Weight and Related Cardiometabolic Profile in Healthy Non-Obese Chinese: A 6-month, Randomized Controlled-Feeding Trial" by Wan et al., EBioMedicine 2017, 22, 200-207. EBioMedicine 2017; 24:32-33. [PMID: 28939486 PMCID: PMC5652134 DOI: 10.1016/j.ebiom.2017.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 09/14/2017] [Indexed: 11/25/2022] Open
Affiliation(s)
- Ibrahim Elmadfa
- Department of Nutritional Sciences, Faculty of Life Sciences, University of Vienna, Austria, Althanstrasse 14, 1090 Vienna, Austria.
| | - Alexa L Meyer
- Department of Nutritional Sciences, Faculty of Life Sciences, University of Vienna, Austria, Althanstrasse 14, 1090 Vienna, Austria
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49
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Astrup A, Hjorth MF. Low-Fat or Low Carb for Weight Loss? It Depends on Your Glucose Metabolism. EBioMedicine 2017; 22:20-21. [PMID: 28693980 PMCID: PMC5672079 DOI: 10.1016/j.ebiom.2017.07.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 07/03/2017] [Indexed: 11/01/2022] Open
Affiliation(s)
- Arne Astrup
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Rolighedsvej 30, 1958 Frederiksberg C, Denmark.
| | - Mads F Hjorth
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Rolighedsvej 30, 1958 Frederiksberg C, Denmark
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