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Nisa MU, Kasankala LM, Khan FA, Al-Asmari F, Rahim MA, Hussain I, Angelov A, Bartkiene E, Rocha JM. Impact of resistant starch: Absorption of dietary minerals, glycemic index and oxidative stress in healthy rats. Clin Nutr ESPEN 2024; 62:1-9. [PMID: 38901928 DOI: 10.1016/j.clnesp.2024.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 04/08/2024] [Accepted: 04/19/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND & AIMS Resistant starch (RS) is a prebiotic fiber that has been scientifically shown to control the development of obesity. Prebiotic role of RS has also seen to be very important as it helps gut bacteria to regulate fermentation and fatty acid production. This study aimed to check the different levels of RS on glycemic index, oxidative stress and mineral absorption rate in healthy rat models. To evaluate these objectives, the trial was conducted for 40 days of follow up; 10 days were the adjustment period and the collection period over 30 days. METHODS Thirty-six healthy female Wistar rats were divided into 4 groups of (9 animals each) NC (Normal Control: without resistant starch), RS0.20 (resistant starch: 0.20 g/kg body weight), RS0.30 (resistant starch: 0.30 g/kg body weight), RS0.40 (resistant starch: 0.40 g/kg body weight). All the diets were isocaloric and isonitroginous. RESULTS The impact of different levels of RS on the dry-matter intake (DMI) presented statistically significant results (p ≤ 0.05): DMI was reduced in RS (0.02) fed rats as compared to NC rats in first 3 weeks; and after 4th and 5th weeks, there was a DMI reduction of 28% in RS (0.04) fed rats. Moreover, there was no significant increase in the nutrient intake in all RS diets. The dry-matter (DM) digestibility was statistically significantly (P ≤ 0·05), which increased in all rats fed with different level of RS. The weight loss showed statistically significant results: RS (0.04) exhibited 19 g reduction in weight as compared with NC rats. Significant increase was observed in total oxidant status (TOS), in all the RS fed rats when compared with NC rats. The levels of Mg, Ca, Fe and Zn were shown to be decrease in feces analysis, which proves their better absorbance in gut. Statistically significant increase was observed in antioxidant capacity, whereas significant decrease was observed in the total weight of the animals, showing the role of RS in controlling obesity. CONCLUSIONS Overall, significant results were found in all dosage level of RS but long term administration of the higher dosage level (RS0.40) may need to be studied for enhanced results. RS can help improve insulin sensitivity in overweight adults.
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Affiliation(s)
- Mahr Un Nisa
- Department of Nutritional Sciences, Faculty of Medical Sciences, Government College University, 38000 Faisalabad, Pakistan.
| | | | - Faima Atta Khan
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore, 40100 Sargodha, Pakistan.
| | - Fahad Al-Asmari
- Department of Food and Nutrition Sciences, College of Agricultural and Food Sciences, King Faisal University, 31982 Al-Ahsa, Saudi Arabia.
| | - Muhammad Abdul Rahim
- Department of Food Science & Nutrition, Faculty of Medicine and Allied Health Sciences, Times Institute Multan, 60700 Pakistan.
| | - Imtiaz Hussain
- Department of Food Science and Technology, Faculty of Agriculture, University of Poonch, Rawalakot, Azad Kashmir, Pakistan.
| | - Angel Angelov
- Department of Biotechnology, University of Food Technologies, 26 Maritza Blvd., 4000 Plovdiv, Bulgaria.
| | - Elena Bartkiene
- Department of Food Safety and Quality, Faculty of Veterinary, Lithuanian University of Health Sciences, Tilzes Str. 18, LT-47181 Kaunas, Lithuania; Faculty of Animal Sciences, Institute of Animal Rearing Technologies, Lithuanian University of Health Sciences, Tilzes Str. 18, LT-47181 Kaunas, Lithuania.
| | - João Miguel Rocha
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal; ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal.
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Almiron-Roig E, Navas-Carretero S, Castelnuovo G, Kjølbæk L, Romo-Hualde A, Normand M, Maloney N, Hardman CA, Hodgkins CE, Moshoyiannis H, Finlayson G, Scott C, Raats MM, Harrold JA, Raben A, Halford JCG, Martínez JA. Impact of acute consumption of beverages containing plant-based or alternative sweetener blends on postprandial appetite, food intake, metabolism, and gastro-intestinal symptoms: Results of the SWEET beverages trial. Appetite 2023; 184:106515. [PMID: 36849009 DOI: 10.1016/j.appet.2023.106515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 02/24/2023] [Accepted: 02/24/2023] [Indexed: 02/27/2023]
Abstract
Project SWEET examined the barriers and facilitators to the use of non-nutritive sweeteners and sweetness enhancers (hereafter "S&SE") alongside potential risks/benefits for health and sustainability. The Beverages trial was a double-blind multi-centre, randomised crossover trial within SWEET evaluating the acute impact of three S&SE blends (plant-based and alternatives) vs. a sucrose control on glycaemic response, food intake, appetite sensations and safety after a carbohydrate-rich breakfast meal. The blends were: mogroside V and stevia RebM; stevia RebA and thaumatin; and sucralose and acesulfame-potassium (ace-K). At each 4 h visit, 60 healthy volunteers (53% male; all with overweight/obesity) consumed a 330 mL beverage with either an S&SE blend (0 kJ) or 8% sucrose (26 g, 442 kJ), shortly followed by a standardised breakfast (∼2600 or 1800 kJ with 77 or 51 g carbohydrates, depending on sex). All blends reduced the 2-h incremental area-under-the-curve (iAUC) for blood insulin (p < 0.001 in mixed-effects models), while the stevia RebA and sucralose blends reduced the glucose iAUC (p < 0.05) compared with sucrose. Post-prandial levels of triglycerides plus hepatic transaminases did not differ across conditions (p > 0.05 for all). Compared with sucrose, there was a 3% increase in LDL-cholesterol after stevia RebA-thaumatin (p < 0.001 in adjusted models); and a 2% decrease in HDL-cholesterol after sucralose-ace-K (p < 0.01). There was an impact of blend on fullness and desire to eat ratings (both p < 0.05) and sucralose-acesulfame K induced higher prospective intake vs sucrose (p < 0.001 in adjusted models), but changes were of a small magnitude and did not translate into energy intake differences over the next 24 h. Gastro-intestinal symptoms for all beverages were mostly mild. In general, responses to a carbohydrate-rich meal following consumption of S&SE blends with stevia or sucralose were similar to sucrose.
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Affiliation(s)
- Eva Almiron-Roig
- University of Navarra, Faculty of Pharmacy and Nutrition, Dept. of Food Science and Physiology, Pamplona, Spain; University of Navarra, Center for Nutrition Research, Pamplona, Spain; Navarra Institute for Health Research (IdiSNa), Pamplona, Spain.
| | - Santiago Navas-Carretero
- University of Navarra, Faculty of Pharmacy and Nutrition, Dept. of Food Science and Physiology, Pamplona, Spain; University of Navarra, Center for Nutrition Research, Pamplona, Spain; Navarra Institute for Health Research (IdiSNa), Pamplona, Spain; Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain.
| | | | - Louise Kjølbæk
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark.
| | - Ana Romo-Hualde
- University of Navarra, Faculty of Pharmacy and Nutrition, Dept. of Food Science and Physiology, Pamplona, Spain; University of Navarra, Center for Nutrition Research, Pamplona, Spain.
| | - Mie Normand
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark.
| | - Niamh Maloney
- Department of Psychology, University of Liverpool, Liverpool, UK.
| | | | - Charo E Hodgkins
- Food Consumer Behaviour and Health Research Centre, School of Psychology, University of Surrey, Guildford, UK.
| | | | | | - Corey Scott
- Cargill R&D Centre Europe, Vilvoorde, Belgium.
| | - Monique M Raats
- Food Consumer Behaviour and Health Research Centre, School of Psychology, University of Surrey, Guildford, UK.
| | - Joanne A Harrold
- Department of Psychology, University of Liverpool, Liverpool, UK.
| | - Anne Raben
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark; Clinical Research, Copenhagen University Hospital - Steno Diabetes Center Copenhagen, Herlev, Denmark.
| | - Jason C G Halford
- Department of Psychology, University of Liverpool, Liverpool, UK; School of Psychology, University of Leeds, Leeds, UK.
| | - J Alfredo Martínez
- University of Navarra, Faculty of Pharmacy and Nutrition, Dept. of Food Science and Physiology, Pamplona, Spain.
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3
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Hanes D, Nowinski B, Lamb JJ, Larson IA, McDonald D, Knight R, Song SJ, Patno N. The gastrointestinal and microbiome impact of a resistant starch blend from potato, banana, and apple fibers: A randomized clinical trial using smart caps. Front Nutr 2022; 9:987216. [PMID: 36245486 PMCID: PMC9559413 DOI: 10.3389/fnut.2022.987216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
The gastrointestinal (GI) impact of fibers including resistant starch (RS) consumption depends on various types and amounts of fibers, the initial microbiome states, and accurate intake measurements. A randomized clinical trial evaluated the GI impact of varying doses of a novel resistant starch blend (RSB) with smart cap monitoring. RSB contained at least 50% RS and was a proprietary mixture of a potato starch, green banana flour, and apple fiber powder (a source of apple pectin, not resistant starch). The study design randomized participants to one of four arms: 10 g/day of potato starch (0 RSB), 10 g/day of RSB, 10 to 20 to 20 g/day of RSB or 10 to 20 to 30 g/day RSB for two-week intervals over 6 weeks. Results confirmed that while resistant starch of approximately 5 g per day improves GI symptoms at 2, 4, and 6 weeks, it did not demonstrate a detectable effect on short chain fatty acids. Increasing doses of the blend (RSB) led to a decrease in the diarrhea score. Using an estimate of total consumption of RSB based on smart cap recordings of container openings and protocol-specified doses of RSB, a reduction in the sleep disturbance score was associated with higher RSB dose. The exploratory microbiome evaluation demonstrated that among the 16S rRNA gene sequences most associated with the consumption of the novel blend RSB, two belong to taxa of notable interest to human health: Faecalibacterium and Akkermansia.
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Affiliation(s)
- Douglas Hanes
- National University of Natural Medicine, Helfgott Research Institute, Portland, OR, United States
| | - Brent Nowinski
- Center for Microbiome Innovation, University of California, San Diego, San Diego, CA, United States
| | - Joseph J. Lamb
- Personalized Lifestyle Medicine Center, Gig Harbor, WA, United States
| | | | - Daniel McDonald
- Department of Pediatrics, University of California, San Diego, San Diego, CA, United States
| | - Rob Knight
- Center for Microbiome Innovation, University of California, San Diego, San Diego, CA, United States
- Department of Pediatrics, University of California, San Diego, San Diego, CA, United States
- Department of Bioengineering, University of California, San Diego, San Diego, CA, United States
- Department of Computer Science and Engineering, University of California, San Diego, San Diego, CA, United States
| | - Se Jin Song
- Center for Microbiome Innovation, University of California, San Diego, San Diego, CA, United States
| | - Noelle Patno
- Formerly Metagenics, Inc., Aliso Viejo, CA, United States
- *Correspondence: Noelle Patno
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Resistant Starch Consumption Effects on Glycemic Control and Glycemic Variability in Patients with Type 2 Diabetes: A Randomized Crossover Study. Nutrients 2021; 13:nu13114052. [PMID: 34836304 PMCID: PMC8621288 DOI: 10.3390/nu13114052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/04/2021] [Accepted: 11/09/2021] [Indexed: 01/02/2023] Open
Abstract
We previously observed beneficial effects of native banana starch (NBS) with a high resistant starch (RS) content on glycemic response in lean and obese participants. Here, we aimed to determine the effects of NBS and high-amylose maize starch (HMS) on glycemic control (GC) and glycemic variability (GV) in patients with type 2 diabetes (T2D) when treatments were matched for digestible starch content. In a randomized, crossover study, continuous glucose monitoring (CGM) was performed in 17 participants (aged 28-65 years, BMI ≥ 25 kg/m2, both genders) consuming HMS, NBS, or digestible maize starch (DMS) for 4 days. HMS and NBS induced an increase in 24 h mean blood glucose during days 2 to 4 (p < 0.05). CONGA, GRADE, and J-index values were higher in HMS compared with DMS only at day 4 (p < 0.05). Yet, NBS intake provoked a reduction in fasting glycemia changes from baseline compared with DMS (p = 0.0074). In conclusion, under the experimental conditions, RS from two sources did not improve GC or GV. Future longer studies are needed to determine whether these findings were affected by a different baseline microbiota or other environmental factors.
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Hegedus E, Salvy SJ, Wee CP, Naguib M, Raymond JK, Fox DS, Vidmar AP. Use of continuous glucose monitoring in obesity research: A scoping review. Obes Res Clin Pract 2021; 15:431-438. [PMID: 34481746 PMCID: PMC8502209 DOI: 10.1016/j.orcp.2021.08.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/23/2021] [Accepted: 08/28/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND This scoping review provides a timely synthesis of the use of continuous glucose monitoring in obesity research with considerations to adherence to continuous glucose monitor devices and metrics most frequently reported. METHODS This scoping review was conducted adhering to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) checklist. Eligible studies (n = 31) evaluated continuous glucose monitor use in research on participants, of all ages, with overweight or obesity. RESULTS Reviewed studies varied in duration from one to 84 days (mean: 8.74 d, SD 15.2, range 1-84 d) with 889 participants total (range: 11-118 participants). Across all studies, the mean percent continuous glucose monitor wear time (actual/intended wear time in days) was 92% (numerator - mean: 266.1 d, SD: 452, range: 9-1596 d/denominator - mean: 271.6 d, SD: 451.5, range: 9-1596 d). Continuous glucose monitoring was utilized to provide biofeedback (n = 2, 6%), monitor dietary adherence (n = 2, 6%), and assess glycemic variability (n = 29, 93%). The most common variability metrics reported were standard deviation (n = 19, 62%), area under the curve (n = 12, 39%), and glycemic range (n = 12, 39%). CONCLUSIONS Available evidence suggests that continuous glucose monitoring is a well-tolerated and versatile tool for obesity research in pediatric and adult patients. Future investigation is needed to substantiate the feasibility and utility of continuous glucose monitors in obesity research and maximize comparability across studies.
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Affiliation(s)
- Elizabeth Hegedus
- Children's Hospital Los Angeles and Keck School of Medicine of USC, Center for Endocrinology, Diabetes and Metabolism, Los Angeles, CA, United States
| | - Sarah-Jeanne Salvy
- Cancer Research Center on Health Equity, Cedars-Sinai Medical Center, West Hollywood, CA, United States
| | - Choo Phei Wee
- Southern California Clinical and Translational Science Institute, Department of Preventive Medicine, Keck School of Medicine, Los Angeles, CA, United States
| | - Monica Naguib
- Children's Hospital Los Angeles and Keck School of Medicine of USC, Center for Endocrinology, Diabetes and Metabolism, Los Angeles, CA, United States
| | - Jennifer K Raymond
- Children's Hospital Los Angeles and Keck School of Medicine of USC, Center for Endocrinology, Diabetes and Metabolism, Los Angeles, CA, United States
| | - D Steven Fox
- Department of Pharmaceutical and Health Economics, School of Pharmacy of the University of Southern California, Los Angeles, CA, United States
| | - Alaina P Vidmar
- Children's Hospital Los Angeles and Keck School of Medicine of USC, Center for Endocrinology, Diabetes and Metabolism, Los Angeles, CA, United States.
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Roux de Bézieux H, Bullard J, Kolterman O, Souza M, Perraudeau F. Medical Food Assessment Using a Smartphone App With Continuous Glucose Monitoring Sensors: Proof-of-Concept Study. JMIR Form Res 2021; 5:e20175. [PMID: 33661120 PMCID: PMC7974765 DOI: 10.2196/20175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 10/22/2020] [Accepted: 01/24/2021] [Indexed: 12/31/2022] Open
Abstract
Background Novel wearable biosensors, ubiquitous smartphone ownership, and telemedicine are converging to enable new paradigms of clinical research. A new generation of continuous glucose monitoring (CGM) devices provides access to clinical-grade measurement of interstitial glucose levels. Adoption of these sensors has become widespread for the management of type 1 diabetes and is accelerating in type 2 diabetes. In parallel, individuals are adopting health-related smartphone-based apps to monitor and manage care. Objective We conducted a proof-of-concept study to investigate the potential of collecting robust, annotated, real-time clinical study measures of glucose levels without clinic visits. Methods Self-administered meal-tolerance tests were conducted to assess the impact of a proprietary synbiotic medical food on glucose control in a 6-week, double-blind, placebo-controlled, 2×2 cross-over pilot study (n=6). The primary endpoint was incremental glucose measured using Abbott Freestyle Libre CGM devices associated with a smartphone app that provided a visual diet log. Results All subjects completed the study and mastered CGM device usage. Over 40 days, 3000 data points on average per subject were collected across three sensors. No adverse events were recorded, and subjects reported general satisfaction with sensor management, the study product, and the smartphone app, with an average self-reported satisfaction score of 8.25/10. Despite a lack of sufficient power to achieve statistical significance, we demonstrated that we can detect meaningful changes in the postprandial glucose response in real-world settings, pointing to the merits of larger studies in the future. Conclusions We have shown that CGM devices can provide a comprehensive picture of glucose control without clinic visits. CGM device usage in conjunction with our custom smartphone app can lower the participation burden for subjects while reducing study costs, and allows for robust integration of multiple valuable data types with glucose levels remotely. Trial Registration ClinicalTrials.gov NCT04424888; http://clinicaltrials.gov/ct2/show/NCT04424888.
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Affiliation(s)
- Hector Roux de Bézieux
- Pendulum Therapeutics, Inc, San Francisco, CA, United States.,Division of Biostatistics, School of Public Health, University of California, Berkeley, Berkeley, CA, United States.,Center for Computational Biology, University of California, Berkeley, CA, United States
| | - James Bullard
- Pendulum Therapeutics, Inc, San Francisco, CA, United States
| | | | - Michael Souza
- Pendulum Therapeutics, Inc, San Francisco, CA, United States
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Lotfollahi Z, Mello APDQ, Costa ES, Oliveira CLP, Damasceno NRT, Izar MC, Neto AMF. Green-banana biomass consumption by diabetic patients improves plasma low-density lipoprotein particle functionality. Sci Rep 2020; 10:12269. [PMID: 32704082 PMCID: PMC7378544 DOI: 10.1038/s41598-020-69288-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 07/09/2020] [Indexed: 01/15/2023] Open
Abstract
The aim of this study was to investigate the effects of 6-months consumption of green-banana biomass on the LDL particle functionality in subjects with type 2 diabetes. Subjects (n = 39, mean age 65 years old) of both sexes with diabetes (HbA1c ≥ 6·5%) were randomized to receive nutritional support plus green-banana biomass (40 g) (n = 21) or diet alone (n = 18) for 6-months. Non-linear optical responses of LDL solutions from these participants were studied by Z-scan technique. UV-visible spectrophotometer was used to measure the absorbance of the LDL samples. Small Angle X-ray Scattering and Dynamic Light Scattering experiments were used to look for any structural changes in LDL samples and to determine their size distribution. The Lipoprint test was used to determine the LDL sub-fractions in terms of distribution and size. Consumption of green-banana biomass, reduced total- (p = 0.010), non-HDL-cholesterol (p = 0.043), glucose (p = 0.028) and HbA1c (p = 0.0007), and also improved the protection of the LDL particle against oxidation, by the increase in carotenoids content in the particles (p = 0.007). This higher protection against modifications may decrease the risk of developing cardiovascular disease. These benefits of the green-banana biomass encourage the use of resistant starches with potential clinical applications in individuals with pre-diabetes and diabetes.
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Affiliation(s)
- Zahra Lotfollahi
- Complex Fluids Group, Instituto de Física, Universidade de São Paulo, Rua Do Matão, 1371, Butantã, São Paulo, SP, CEP: 05508-090, Brazil
| | | | - Edna S Costa
- Federal University of São Paulo, São Paulo, Brazil
| | - Cristiano L P Oliveira
- Complex Fluids Group, Instituto de Física, Universidade de São Paulo, Rua Do Matão, 1371, Butantã, São Paulo, SP, CEP: 05508-090, Brazil
| | | | | | - Antonio Martins Figueiredo Neto
- Complex Fluids Group, Instituto de Física, Universidade de São Paulo, Rua Do Matão, 1371, Butantã, São Paulo, SP, CEP: 05508-090, Brazil.
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Binou P, Yanni AE, Stergiou A, Karavasilis K, Konstantopoulos P, Perrea D, Tentolouris N, Karathanos VT. Enrichment of bread with beta-glucans or resistant starch induces similar glucose, insulin and appetite hormone responses in healthy adults. Eur J Nutr 2020; 60:455-464. [PMID: 32385687 DOI: 10.1007/s00394-020-02265-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 04/28/2020] [Indexed: 11/24/2022]
Abstract
PURPOSE β-Glucans (βG) and resistant starch (RS) are known for their effects on the improvement of glucose tolerance and enhancement of insulin sensitivity. Enrichment of bread with βG or RS was performed to examine potential postprandial benefits regarding gastrointestinal hormone responses. METHODS Ten healthy normoglycaemic adults participated in the study and were provided with either a glucose solution (reference food, GS) or bread enriched with β-glucans (βGB) (3.6 g/30 g available CHO) or bread enriched with resistant starch (RSB) (15% of total starch), with 1-week intervals in amounts that yielded 50 g of available carbohydrates. Venous blood samples were collected before consumption and at 15, 30, 45, 60, 90, 120 and 180 min postprandially. Glucose, insulin, ghrelin, glucagon-like peptide-1 (GLP-1) and peptide YY (PYY) responses as well as glycaemic index (GI) and subjective appetite ratings were evaluated. RESULTS Ingestion of βGB and RSB elicited lower incremental area under the curve (iAUC) for glycaemic response compared to GS (P < 0.05). Both breads demonstrated a low GI (βGB: 48, RSB: 40). There were no significant differences in insulin response, ghrelin, GLP-1 or PYY between the two breads. A significantly lower desire to eat and higher fullness were detected 15 min after βGB and RSB consumption and until 180 min (P < 0.05 compared to GS). CONCLUSION Enrichment of bread with either βG or RS produced a low GI product but the two breads were not significantly different in relation to insulin, ghrelin, GLP-1 and PYY responses. The development of bread products which cause improved metabolic effects is of great importance for the promotion of public health.
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Affiliation(s)
- Panagiota Binou
- Laboratory of Chemistry, Biochemistry, Physical Chemistry of Foods, Department of Nutrition and Dietetics, Harokopio University, 70 El. Venizelou Ave, 17671, Athens, Greece
| | - Amalia E Yanni
- Laboratory of Chemistry, Biochemistry, Physical Chemistry of Foods, Department of Nutrition and Dietetics, Harokopio University, 70 El. Venizelou Ave, 17671, Athens, Greece.
| | - Athena Stergiou
- Laboratory of Chemistry, Biochemistry, Physical Chemistry of Foods, Department of Nutrition and Dietetics, Harokopio University, 70 El. Venizelou Ave, 17671, Athens, Greece.,1st Department of Propaedeutic Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantinos Karavasilis
- ELBISCO S.A., Industrial and Commercial Food Company, 21st Km Marathonos Ave, Pikermi, Attica, Greece
| | - Panagiotis Konstantopoulos
- Laboratory of Experimental Surgery and Surgery Research, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Despoina Perrea
- Laboratory of Experimental Surgery and Surgery Research, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos Tentolouris
- 1st Department of Propaedeutic Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Vaios T Karathanos
- Laboratory of Chemistry, Biochemistry, Physical Chemistry of Foods, Department of Nutrition and Dietetics, Harokopio University, 70 El. Venizelou Ave, 17671, Athens, Greece
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9
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Resistant Starch Has No Effect on Appetite and Food Intake in Individuals with Prediabetes. J Acad Nutr Diet 2020; 120:1034-1041. [PMID: 32280055 DOI: 10.1016/j.jand.2020.01.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 01/24/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND Type 2 resistant starch (RS2) has been shown to improve metabolic health outcomes and may increase satiety and suppress appetite and food intake in humans. OBJECTIVE This study assessed whether 12 weeks of daily RS2 supplementation could influence appetite perception, food intake, and appetite-related gut hormones in adults with prediabetes, relative to the control (CTL) group. DESIGN The study was a randomized controlled trial and analysis of secondary study end points. PARTICIPANTS/SETTING Sixty-eight adults (body mass index ≥27) aged 35 to 75 years with prediabetes were enrolled in the study at Pennington Biomedical Research Center (2012 to 2016). Fifty-nine subjects were included in the analysis. INTERVENTION Participants were randomized to consume 45 g/day of high-amylose maize (RS2) or an isocaloric amount of the rapidly digestible starch amylopectin (CTL) for 12 weeks. MAIN OUTCOME MEASURES Subjective appetite measures were assessed via visual analogue scale and the Eating Inventory; appetite-related gut hormones (glucagon-like peptide 1, peptide YY, and ghrelin) were measured during a standard mixed-meal test; and energy and macronutrient intake were assessed by a laboratory food intake (buffet) test, the Remote Food Photography Method, and SmartIntake app. STATISTICAL ANALYSES PERFORMED Data were analyzed using linear mixed models, adjusting for treatment group and time as fixed effects, with a significance level of α=.05. RESULTS RS2 had no effect on subjective measures of appetite, as assessed by visual analogue scale (P>0.05) and the Eating Inventory (P≥0.24), relative to the CTL group. There were no effects of RS2 supplementation on appetite-related gut hormones, including glucagon-like peptide 1 (P=0.61), peptide YY (P=0.34), and both total (P=0.26) and active (P=0.47) ghrelin compared with the CTL. RS2 had no effect on total energy (P=0.30), carbohydrate (P=0.11), protein (P=0.64), or fat (P=0.37) consumption in response to a buffet meal test, relative to the CTL. In addition, total energy (P=0.40), carbohydrate (P=0.15), protein (P=0.46), and fat (P=0.53) intake, as quantified by the Remote Food Photography Method, were also unaffected by RS2, relative to the CTL. CONCLUSIONS RS2 supplementation did not increase satiety or reduce appetite and food intake in adults with prediabetes.
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10
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Beneficial effects of green banana biomass consumption in patients with pre-diabetes and type 2 diabetes: a randomised controlled trial. Br J Nutr 2019; 121:1365-1375. [DOI: 10.1017/s0007114519000576] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AbstractDiabetes mellitus is a global epidemic, characterised as a heterogeneous group of metabolic disorders associated with high risk of CVD. Green banana biomass, which is composed of resistant starches (RS) and cannot be hydrolysed by amylases, delays gastric emptying and modulates insulin sensitivity, thus contributing to improve metabolic disorders. The aim of the present study was to investigate the effects of consumption of RS from green banana biomass on body composition, fasting plasma glucose, glycated Hb (HbA1c) and homeostasis model assessment of insulin resistance in subjects with pre-diabetes or type 2 diabetes on top of treatment. Middle-aged subjects (n113) of both sexes with pre-diabetes (HbA1c: 5·7–6·4 %) or diabetes (HbA1c ≥ 6·5 %) were randomised to receive nutritional support plus green banana biomass (40 g) (RS: approximately 4·5 g, G1,n62) or diet alone (G2,n51) for 24 weeks. Body composition, biochemical analyses and dietary intake were evaluated at the beginning and end of the study. In the experimental group (G1), consumption of RS was associated with reduction in HbA1c (P= 0·0001), fasting glucose (P= 0·021), diastolic blood pressure (P= 0·010), body weight (P= 0·002), BMI (P= 0·006), waist and hip circumferences (P< 0·01), fat mass percentage (P= 0·001) and increase in lean mass percentage (P= 0·011). In controls (G2), reductions were observed in waist and hip circumferences (P< 0·01), HbA1c (P= 0·002) and high-density lipoprotein-cholesterol (P= 0·020). In pre-diabetes or diabetes, non-significant differences were observed in the percentage reduction in HbA1c and fasting glucose in exploratory analyses. Our results indicate that the consumption of bioactive starches is a good dietary strategy to improve metabolic control and body composition.
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Peterson CM, Beyl RA, Marlatt KL, Martin CK, Aryana KJ, Marco ML, Martin RJ, Keenan MJ, Ravussin E. Effect of 12 wk of resistant starch supplementation on cardiometabolic risk factors in adults with prediabetes: a randomized controlled trial. Am J Clin Nutr 2018; 108:492-501. [PMID: 30010698 PMCID: PMC6134290 DOI: 10.1093/ajcn/nqy121] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 05/10/2018] [Indexed: 12/13/2022] Open
Abstract
Background Type 2 resistant starch (RS2) has been shown to improve glycemic control and some cardiovascular endpoints in rodent and human studies. Objective The aim of this study was to perform one of the first randomized clinical trials in adults with prediabetes and one of the longest trials to test whether RS2 can improve cardiometabolic health. Design 68 overweight [body mass index (BMI) ≥27 kg/m2] adults aged 35-75 y with prediabetes were randomized to consume 45 g/d of high-amylose maize (RS2) or an isocaloric amount of the rapidly digestible starch amylopectin (control) for 12 wk. At baseline and postintervention, ectopic fat depots (visceral adipose tissue, intrahepatic lipids, and intramyocellular lipids) were measured by magnetic resonance imaging/spectroscopy, energy metabolism by respiratory chamber, and carbohydrate metabolism by glycated hemoglobin (HbA1c), an intravenous glucose tolerance test, and a meal tolerance test. Cardiovascular risk factors-serum lipids, blood pressure, heart rate, and inflammatory markers (high-sensitivity C-reactive protein [hs-CRP], interleukin-6, and tumor necrosis factor [TNF]-α)-were also measured. The primary endpoints were insulin sensitivity, insulin secretion, ectopic fat, and markers of inflammation. Data were primarily analyzed as treatment effects via a linear mixed model both with and without the addition of covariates. Results Relative to the control group, RS2 lowered HbA1c by a clinically insignificant 0.1 ± 0.2% (Δ = -1 ± 2 mmol/mol; P = 0.05) but did not affect insulin secretion, insulin sensitivity, the disposition index, or glucose or insulin areas under the curve relative to baseline (P ≥ 0.23). RS2 decreased heart rate by 5 ± 9 beats/min (P = 0.02) and TNF-α concentrations by 2.1 ± 2.7 pg/mL (P = 0.004), relative to the control group. Ectopic fat, energy expenditure, substrate oxidation, and all other cardiovascular risk factors were unaffected (P ≥ 0.06). Conclusions 12 wk of supplementation with resistant starch reduced the inflammatory marker TNF-α and heart rate, but it did not significantly improve glycemic control and other cardiovascular disease risk factors, in adults with prediabetes. This trial was registered at clinicaltrials.gov as NCT01708694.
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Affiliation(s)
- Courtney M Peterson
- Division of Clinical Science, Pennington Biomedical Research Center, Baton Rouge, LA,Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL
| | - Robbie A Beyl
- Biostatistics, Pennington Biomedical Research Center, Baton Rouge, LA
| | - Kara L Marlatt
- Division of Clinical Science, Pennington Biomedical Research Center, Baton Rouge, LA
| | - Corby K Martin
- Division of Clinical Science, Pennington Biomedical Research Center, Baton Rouge, LA
| | - Kayanush J Aryana
- School of Animal Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA
| | - Maria L Marco
- Food Science and Technology, University of California-Davis, Davis, CA
| | - Roy J Martin
- Division of Clinical Science, Pennington Biomedical Research Center, Baton Rouge, LA,School of Nutrition and Food Sciences, Louisiana State University, Baton Rouge, LA
| | - Michael J Keenan
- School of Nutrition and Food Sciences, Louisiana State University, Baton Rouge, LA
| | - Eric Ravussin
- Division of Clinical Science, Pennington Biomedical Research Center, Baton Rouge, LA,Address correspondence to ER (e-mail: )
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Thompson SV, Hannon BA, An R, Holscher HD. Effects of isolated soluble fiber supplementation on body weight, glycemia, and insulinemia in adults with overweight and obesity: a systematic review and meta-analysis of randomized controlled trials. Am J Clin Nutr 2017; 106:1514-1528. [PMID: 29092878 DOI: 10.3945/ajcn.117.163246] [Citation(s) in RCA: 123] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 10/02/2017] [Indexed: 11/14/2022] Open
Abstract
Background: There is strong epidemiologic evidence that dietary fiber intake is protective against overweight and obesity; however, results of intervention studies have been mixed. Soluble fiber beneficially affects metabolism, and fiber supplementation may be a feasible approach to improve body composition and glycemia in adults with overweight and obesity.Objective: We evaluated randomized controlled trials (RCTs) of isolated soluble fiber supplementation in overweight and obese adults on outcomes related to weight management [body mass index (BMI; in kg/m2), body weight, percentage of body fat, and waist circumference] and glucose and insulin metabolism (homeostasis model assessment of insulin resistance and fasting insulin) through a systematic review and meta-analysis.Design: We searched PubMed, Web of Science, Cumulative Index to Nursing and Allied Health Literature and Cochrane Library databases. Eligible studies were RCTs that compared isolated soluble fiber with placebo treatments without energy-restriction protocols. Random-effects models were used to estimate pooled effect sizes and 95% CIs. Meta-regressions were performed to assess outcomes in relation to the intervention duration, fiber dose, and fiber type. Publication bias was assessed via Begg's and Egger's tests and funnel plot inspection.Results: Findings from 12 RCTs (n = 609 participants) from 2 to 17 wk of duration are summarized in this review. Soluble fiber supplementation reduced BMI by 0.84 (95% CI: -1.35, -0.32; P = 0.001), body weight by 2.52 kg (95% CI: -4.25, -0.79 kg; P = 0.004), body fat by 0.41% (95% CI: -0.58%, -0.24%; P < 0.001), fasting glucose by 0.17 mmol/L (95% CI: -0.28, -0.06 mmol/L; P = 0.002), and fasting insulin by 15.88 pmol/L (95% CI: -29.05, -2.71 pmol/L; P = 0.02) compared with the effects of placebo treatments. No publication bias was identified. Considerable between-study heterogeneity was observed for most outcomes.Conclusions: Isolated soluble fiber supplementation improves anthropometric and metabolic outcomes in overweight and obese adults, thereby indicating that supplementation may improve fiber intake and health in these individuals. However, the interpretation of these findings warrants caution because of the considerable between-study heterogeneity. This trial was registered at clinicaltrials.gov as NCT03003897.
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Affiliation(s)
| | | | - Ruopeng An
- Division of Nutritional Sciences, and.,Departments of Kinesiology and Community Health and
| | - Hannah D Holscher
- Division of Nutritional Sciences, and .,Departments of Kinesiology and Community Health and.,Food Science and Human Nutrition, University of Illinois, Urbana, IL
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