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van Trijp MPH, Rios-Morales M, Witteman B, Abegaz F, Gerding A, An R, Koehorst M, Evers B, van Dongen KCV, Zoetendal EG, Schols H, Afman LA, Reijngoud DJ, Bakker BM, Hooiveld GJ. Intraintestinal fermentation of fructo- and galacto-oligosaccharides and the fate of short-chain fatty acids in humans. iScience 2024; 27:109208. [PMID: 38420581 PMCID: PMC10901090 DOI: 10.1016/j.isci.2024.109208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/21/2023] [Accepted: 02/07/2024] [Indexed: 03/02/2024] Open
Abstract
Consumption of fructo- (FOS) and galacto-oligosaccharides (GOS) has health benefits which have been linked in part to short-chain fatty acids (SCFA) production by the gut microbiota. However, detailed knowledge of this process in the human intestine is lacking. We aimed to determine the acute fermentation kinetics of a FOS:GOS mixture in healthy males using a naso-intestinal catheter for sampling directly in the ileum or colon. We studied the fate of SCFA as substrates for glucose and lipid metabolism by the host after infusion of 13C-SCFA. In the human distal ileum, no fermentation of FOS:GOS, nor SCFA production, or bacterial cross-feeding was observed. The relative composition of intestinal microbiota changed rapidly during the test day, which demonstrates the relevance of postprandial intestinal sampling to track acute responses of the microbial community toward interventions. SCFA were vividly taken up and metabolized by the host as shown by incorporation of 13C in various host metabolites.
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Affiliation(s)
- Mara P H van Trijp
- Division of Human Nutrition and Health, Wageningen University, Wageningen 6708 WE, the Netherlands
| | - Melany Rios-Morales
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Ben Witteman
- Division of Human Nutrition and Health, Wageningen University, Wageningen 6708 WE, the Netherlands
- Hospital Gelderse Vallei, Department of Gastroenterology and Hepatology, Ede 6716 RP, the Netherlands
| | - Fentaw Abegaz
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
- Statistics and Probability Unit, University of Groningen, Groningen 9747 AG, the Netherlands
| | - Albert Gerding
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Ran An
- Laboratory of Microbiology, Wageningen University, Wageningen 6708 WE, the Netherlands
| | - Martijn Koehorst
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Bernard Evers
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Katja C V van Dongen
- Division of Toxicology, Wageningen University, Wageningen 6708 WE, the Netherlands
| | - Erwin G Zoetendal
- Laboratory of Microbiology, Wageningen University, Wageningen 6708 WE, the Netherlands
| | - Henk Schols
- Laboratory of Food Chemistry, Wageningen University, Wageningen 6708 WG, the Netherlands
| | - Lydia A Afman
- Division of Human Nutrition and Health, Wageningen University, Wageningen 6708 WE, the Netherlands
| | - Dirk-Jan Reijngoud
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Barbara M Bakker
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Guido J Hooiveld
- Division of Human Nutrition and Health, Wageningen University, Wageningen 6708 WE, the Netherlands
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2
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Bastings JJAJ, Venema K, Blaak EE, Adam TC. Influence of the gut microbiota on satiety signaling. Trends Endocrinol Metab 2023; 34:243-255. [PMID: 36870872 DOI: 10.1016/j.tem.2023.02.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/09/2023] [Accepted: 02/09/2023] [Indexed: 03/06/2023]
Abstract
Recent studies show a link between the gut microbiota and the regulation of satiety and energy intake, processes that contribute to the development and pathophysiology of metabolic diseases. However, this link is predominantly established in animal and in vitro studies, whereas human intervention studies are scarce. In this review we focus on recent evidence linking satiety and the gut microbiome, with specific emphasis on gut microbial short-chain fatty acids (SCFAs). Based on a systematic search we provide an overview of human studies linking the intake of prebiotics with gut microbial alterations and satiety signaling. Our outcomes highlight the importance of in-depth examination of the gut microbiota in relation to satiety and provide insights into recent and future studies in this field.
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Affiliation(s)
- Jacco J A J Bastings
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Koen Venema
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands; Centre for Healthy Eating and Food Innovation, Maastricht University, Campus Venlo, Venlo, The Netherlands
| | - Ellen E Blaak
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands.
| | - Tanja C Adam
- Department of Nutrition and Movement Sciences, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands
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Laito S, Valkonen N, Laaksonen O, Kalliomäki M, Tuure T, Linderborg KM. Effect of oat or rice flour on pulse-induced gastrointestinal symptoms and breath hydrogen in subjects sensitive to pulses and controls - a randomised cross-over trial with two parallel groups. Br J Nutr 2022; 128:2181-2192. [PMID: 35086570 PMCID: PMC9661369 DOI: 10.1017/s0007114522000332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 01/08/2022] [Accepted: 01/24/2022] [Indexed: 12/30/2022]
Abstract
Pulses are healthy and sustainable but induce gut symptoms in people with a sensitive gut. Oats, on the contrary, have no fermentable oligo- di-, monosaccharides and polyols compounds and are known for the health effects of their fibres. This 4-day cross-over trial investigated the effects of oat and rice flour ingested with pulses on gut symptoms and exhaled gases (4th day only) in subjects with a sensitive gut or IBS (n 21) and controls (n 21). The sensitive group perceived more symptoms after both meals than controls (P = 0·001, P = 0·001). Frequency, intensity or quality of the symptoms did not differ between meals during the first 3 d in either group. More breath hydrogen was produced after an oat than rice containing meal in both groups (AUC, P = 0·001, P = 0·001). No between-group difference was seen in breath gases. During day 4, both sensitive and control groups perceived more symptoms after the oat flour meal (P = 0·001, P = 0·0104, respectively) as mainly mild flatulence. No difference in moderate or severe symptoms was detected. Increased hydrogen production correlated to a higher amount of perceived flatulence after the oat flour meal in both the sensitive and the control groups (P = 0·042, P = 0·003, respectively). In summary, ingestion of oat flour with pulses increases breath hydrogen levels compared with rice flour, but gastrointestinal symptoms of subjects sensitive to pulses were not explained by breath hydrogen levels. Additionally, consumer mindsets towards pulse consumption and pulse-related gut symptoms were assessed by an online survey, which implied that perceived gut symptoms hinder the use of pulses in sensitive subjects.
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Affiliation(s)
- Salla Laito
- Food Chemistry and Food Development, Department of Life Technologies, University of Turku, Finland
| | | | - Oskar Laaksonen
- Food Chemistry and Food Development, Department of Life Technologies, University of Turku, Finland
| | - Marko Kalliomäki
- Department of Pediatrics, University of Turku, Turku, Finland
- Department of Pediatrics and Adolescent Medicine, Turku University Hospital, Turku, Finland
| | | | - Kaisa M. Linderborg
- Food Chemistry and Food Development, Department of Life Technologies, University of Turku, Finland
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Rakha A, Mehak F, Shabbir MA, Arslan M, Ranjha MMAN, Ahmed W, Socol CT, Rusu AV, Hassoun A, Aadil RM. Insights into the constellating drivers of satiety impacting dietary patterns and lifestyle. Front Nutr 2022; 9:1002619. [PMID: 36225863 PMCID: PMC9549911 DOI: 10.3389/fnut.2022.1002619] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
Food intake and body weight regulation are of special interest for meeting today's lifestyle essential requirements. Since balanced energy intake and expenditure are crucial for healthy living, high levels of energy intake are associated with obesity. Hence, regulation of energy intake occurs through short- and long-term signals as complex central and peripheral physiological signals control food intake. This work aims to explore and compile the main factors influencing satiating efficiency of foods by updating recent knowledge to point out new perspectives on the potential drivers of satiety interfering with food intake regulation. Human internal factors such as genetics, gender, age, nutritional status, gastrointestinal satiety signals, gut enzymes, gastric emptying rate, gut microbiota, individual behavioral response to foods, sleep and circadian rhythms are likely to be important in determining satiety. Besides, the external factors (environmental and behavioral) impacting satiety efficiency are highlighted. Based on mechanisms related to food consumption and dietary patterns several physical, physiological, and psychological factors affect satiety or satiation. A complex network of endocrine and neuroendocrine mechanisms controls the satiety pathways. In response to food intake and other behavioral cues, gut signals enable endocrine systems to target the brain. Intestinal and gastric signals interact with neural pathways in the central nervous system to halt eating or induce satiety. Moreover, complex food composition and structures result in considerable variation in satiety responses for different food groups. A better understanding of foods and factors impacting the efficiency of satiety could be helpful in making smart food choices and dietary recommendations for a healthy lifestyle based on updated scientific evidence.
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Affiliation(s)
- Allah Rakha
- National Institute of Food Science and Technology, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Fakiha Mehak
- National Institute of Food Science and Technology, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Muhammad Asim Shabbir
- National Institute of Food Science and Technology, University of Agriculture Faisalabad, Faisalabad, Pakistan
- *Correspondence: Muhammad Asim Shabbir
| | - Muhammad Arslan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | | | - Waqar Ahmed
- National Institute of Food Science and Technology, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | | | - Alexandru Vasile Rusu
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Cluj-Napoca, Romania
- Faculty of Animal Science and Biotechnology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Cluj-Napoca, Romania
- Alexandru Vasile Rusu
| | - Abdo Hassoun
- Univ. Littoral Côte d'Opale, UMRt 1158 BioEcoAgro, USC ANSES, INRAe, Univ. Artois, Univ. Lille, Univ. Picardie Jules Verne, Univ. Liège, Junia, F-62200, Boulogne-sur-Mer, France
- Sustainable AgriFoodtech Innovation & Research (SAFIR), Arras, France
| | - Rana Muhammad Aadil
- National Institute of Food Science and Technology, University of Agriculture Faisalabad, Faisalabad, Pakistan
- Rana Muhammad Aadil
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Short-term effects of sugar-free apricot jam, cocoa powder and dried cranberry cereal bar on glycaemic responses in healthy adults: a randomised clinical trial. J Nutr Sci 2022; 11:e77. [PMID: 36304830 PMCID: PMC9574874 DOI: 10.1017/jns.2022.74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/02/2022] [Indexed: 12/14/2022] Open
Abstract
High sugar intake has been associated with adverse effects on health, with some types of breakfast being highly linked to overweight and obesity. The aim was to compare the effects of four sugar-free breakfast items, apricot jam with white bread (JWB), white bread (WB), cocoa with fat-free milk (CM), and dried cranberry cereal bar (CB), compared to d-glucose on the glycaemic responses. Using a cross-over design, twelve healthy individuals (25 ± 4 years; BMI 22 ± 2 kg/m2) received isoglucidic test meals (25 g of available carbohydrate) and 25 g glucose reference, in random order. Glycaemic index/load (GI/GL) were calculated, and capillary blood glucose samples were collected at 0–120 min after meal consumption. Subjective appetite was assessed with visual analogue scales. Sugar-free apricot jam and cocoa powder contained traces of available carbohydrates and were consumed along with bread and fat-free milk, respectively. JWB and WB were classified as medium GI, low-to-medium GL; CM as medium GI, low GL; and CB as high GI, low-to-medium GL. Subjective hunger was lower after JWB, fullness was higher after CM and pleasure was higher after CB (P for all < 0⋅05). In conclusion, sugar-free apricot jam with and without WB and cocoa powder with fat-free milk are suitable healthy breakfast options leading to improved glycaemic and subjective appetite responses.
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Zhang B, Zhong Y, Dong D, Zheng Z, Hu J. Gut microbial utilization of xylan and its implication in gut homeostasis and metabolic response. Carbohydr Polym 2022; 286:119271. [DOI: 10.1016/j.carbpol.2022.119271] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/16/2022] [Accepted: 02/16/2022] [Indexed: 12/16/2022]
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Papakonstantinou E, Xaidara M, Siopi V, Giannoglou M, Katsaros G, Theodorou G, Maratou E, Poulia KA, Dimitriadis GD, Skandamis PN. Effects of Spaghetti Differing in Soluble Fiber and Protein Content on Glycemic Responses in Humans: A Randomized Clinical Trial in Healthy Subjects. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19053001. [PMID: 35270698 PMCID: PMC8909947 DOI: 10.3390/ijerph19053001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 02/04/2023]
Abstract
This randomized, single blind, cross-over study investigated the glycemic responses to three spaghetti No 7 types differing in dietary protein and soluble fiber content. Fourteen clinically and metabolically healthy, fasting individuals (25 ± 1 years; ten women; BMI 23 ± 1 kg/m2) received isoglucidic test meals (50 g available carbohydrate) and 50 g glucose reference, in random order. GI was calculated using the FAO/WHO method. Capillary blood glucose and salivary insulin samples were collected at 0, 15, 30, 45, 60, and 120 min. Subjective appetite ratings (hunger, fullness, and desire to eat) were assessed by visual analogue scales (VAS, 100 mm) at baseline and 120 min. All three spaghetti types (regular, whole wheat, and high soluble fiber–low carbohydrates) provided low GI values (33, 38, and 41, respectively, on glucose scale) and lower peak glucose values compared to glucose or white bread. No differences were observed between spaghetti No 7 types for fasting glucose, fasting and post-test-meal insulin concentrations, blood pressure (systolic and diastolic), and subjective appetite. Conclusions: all spaghetti No 7 types, regardless of soluble fiber and/or protein content, attenuated postprandial glycemic response, which may offer advantages to glycemic control.
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Affiliation(s)
- Emilia Papakonstantinou
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (M.X.); (V.S.); (K.-A.P.)
- Correspondence: ; Tel.: +30-2105294967
| | - Marina Xaidara
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (M.X.); (V.S.); (K.-A.P.)
| | - Vassiliki Siopi
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (M.X.); (V.S.); (K.-A.P.)
| | - Marianna Giannoglou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization “DEMETER”, 14123 Athens, Greece; (M.G.); (G.K.)
| | - George Katsaros
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization “DEMETER”, 14123 Athens, Greece; (M.G.); (G.K.)
| | - Georgios Theodorou
- Laboratory of Animal Breeding and Husbandry, Department of Animal Science, School of Animal Biosciences, Agricultural University of Athens, 11855 Athens, Greece;
| | - Eirini Maratou
- Department of Clinical Biochemistry, “Attikon” University General Hospital, National and Kapodistrian University of Athens, Haidari, 12462 Athens, Greece;
| | - Kalliopi-Anna Poulia
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (M.X.); (V.S.); (K.-A.P.)
| | - George D. Dimitriadis
- Sector of Medicine, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece;
| | - Panagiotis N. Skandamis
- Laboratory of Food Quality Control and Hygiene, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece;
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Abstract
Rye (Secale cereale L.) is abundantly cultivated in countries like Europe and North America, particularly in regions where soil and climate conditions are unfavorable for the growth of other cereals. Among all the cereals generally consumed by human beings, rye grains are characterized by the presence of the highest content of fiber. They are also a rich source of many phytochemical compounds, which are mainly distributed in the outer parts of the grain. This review focuses on the current knowledge regarding the characteristics of rye bran and wholemeal rye flour, as well as their applications in the production of both food and nonfood products. Previous studies have shown that the physicochemical properties of ground rye products are determined by the type of milling technique used to grind the grains. In addition, the essential biologically active compounds found in rye grains were isolated and characterized. Subsequently, the possibility of incorporating wholemeal rye flour, rye bran, and other compounds extracted from rye bran into different industrial products is discussed.
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Sanders LM, Zhu Y, Wilcox ML, Koecher K, Maki KC. Effects of Whole Grain Intake, Compared with Refined Grain, on Appetite and Energy Intake: A Systematic Review and Meta-Analysis. Adv Nutr 2021; 12:1177-1195. [PMID: 33530093 PMCID: PMC8321865 DOI: 10.1093/advances/nmaa178] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/08/2020] [Accepted: 12/18/2020] [Indexed: 12/20/2022] Open
Abstract
Results from observational studies indicate that whole grain (WG) intake is inversely associated with BMI and risk of weight gain. WG intake may influence energy balance and body composition through effects on appetite and energy intake. To evaluate the impact of WG food consumption on appetite and energy intake, a systematic review and meta-analysis was performed of results from randomized controlled trials (RCTs) assessing WG food consumption, appetite, and energy intake in adults. A search of PubMed, Scopus, and Food Science and Technology Abstracts yielded 36 RCTs measuring subjective appetite ratings after consuming WG foods compared with refined grain (RG) controls. Thirty-two of these studies reported AUCs for subjective appetite (hunger, fullness, satiety, desire to eat, or prospective consumption) and/or energy intake and were included in the meta-analysis. Pooled estimates from meta-analyses are expressed as standardized mean differences (SMDs). Compared with RG foods, intake of WG foods resulted in significant differences in AUCs for subjective hunger (SMD: -0.34; 95% CI: -0.46, -0.22; P < 0.001), fullness (SMD: 0.49; 95% CI: 0.31, 0.66; P < 0.001), satiety (SMD: 0.33; 95% CI: 0.18, 0.47; P < 0.001), and desire to eat (SMD: -0.33; 95% CI: -0.46, -0.20; P < 0.001). There were small, nonsignificant reductions in prospective consumption ratings (P = 0.08) and energy intake (P = 0.07) with WG intake compared with RG. These results support the view that consumption of WG foods, compared with RG foods, significantly impacts subjective appetite, and might partly explain the inverse associations between WG food intake and risk of overweight, obesity, and weight gain over time. PROSPERO registration: CRD42020148217.
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Affiliation(s)
| | - Yong Zhu
- Bell Institute of Nutrition, General Mills, Inc., Minneapolis, MN, USA
| | | | - Katie Koecher
- Bell Institute of Nutrition, General Mills, Inc., Minneapolis, MN, USA
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Kong H, Yu L, Gu Z, Li C, Cheng L, Hong Y, Li Z. An Innovative Short-Clustered Maltodextrin as Starch Substitute for Ameliorating Postprandial Glucose Homeostasis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:354-367. [PMID: 33350823 DOI: 10.1021/acs.jafc.0c02828] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Dietary starch is usually associated with elevated postprandial glycemic response. This is a potential risk factor of type 2 diabetes. Here, a 1,4-α-glucan branching enzyme (GBE) was employed to reassemble α-1,4 and α-1,6 glycosidic bonds in starch molecules. Structural characterization showed that GBE-catalyzed molecular reassembly created an innovative short-clustered maltodextrin (SCMD), which showed a dense internal framework along with shortened external chains. Such short-clustered molecules obstructed digestive enzymes attack and displayed dramatically reduced digestibility. Therefore, SCMD was served as a dietary starch substitute to improve postprandial glucose homeostasis. A 22.3% decrease in glycemic peak was therefore detected in ICR mice following SCMD intake (10.7 mmol/L), compared with that in the control (13.8 mmol/L). Moreover, an attenuated insulin response (40.5% lower than that in control) to SCMD intake was regarded suitable for diabetes management. These novel discoveries demonstrate that enzymatically rebuilding starch molecules may be a meaningful strategy for diabetes management.
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Affiliation(s)
- Haocun Kong
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Luxi Yu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Zhengbiao Gu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Caiming Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Li Cheng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Yan Hong
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Zhaofeng Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
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11
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Sanders LM, Dicklin MR, Palacios OM, Maki CE, Wilcox ML, Maki KC. Effects of potato resistant starch intake on insulin sensitivity, related metabolic markers and appetite ratings in men and women at risk for type 2 diabetes: a pilot cross-over randomised controlled trial. J Hum Nutr Diet 2020; 34:94-105. [PMID: 33119948 PMCID: PMC7894332 DOI: 10.1111/jhn.12822] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 01/14/2023]
Abstract
Background The intake of certain types of resistant starch (RS) has been associated in some studies with increased whole‐body insulin sensitivity. This randomised, cross‐over pilot trial evaluated the effect of consuming cooked, then chilled potatoes, a source of RS, compared to isoenergetic, carbohydrate (CHO)‐containing control foods, on insulin sensitivity and related markers. Methods Nineteen adults with body mass index 27.0‐39.9 kg m−2 consumed 300 g day−1 RS‐enriched potatoes (approximately two potatoes; ~18 g RS) or CHO‐based control foods, as part of lunch, evening and snack meals, over a 24‐h period. After an overnight fast, insulin sensitivity, CHO metabolism markers, free fatty acids, breath hydrogen levels and appetite were assessed for up to 5 h after the intake of a standard breakfast. The primary endpoint was insulin sensitivity, assessed with the Matsuda index. P < 0.05 (one‐sided) was considered statistically significant. Results Insulin sensitivity was not significantly different between the potato and control conditions. The potato intervention resulted in higher postprandial breath hydrogen (P = 0.037), lower postprandial free fatty acid concentrations (P = 0.039) and lower fasting plasma glucose (P = 0.043) compared to the control condition. Fullness ratings were significantly lower after potato versus control (P = 0.002). No other significant effects were observed; however, there was a trend toward lower fasting insulin (P = 0.077) in the potato versus the control condition. Conclusions The results of this pilot study suggest RS‐enriched potatoes may have a favourable impact on carbohydrate metabolism and support the view that additional research in a larger study sample is warranted.
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Affiliation(s)
- L M Sanders
- Midwest Biomedical Research: Center for Metabolic and Cardiovascular Health, Addison, IL, USA
| | - M R Dicklin
- Midwest Biomedical Research: Center for Metabolic and Cardiovascular Health, Addison, IL, USA
| | - O M Palacios
- Midwest Biomedical Research: Center for Metabolic and Cardiovascular Health, Addison, IL, USA
| | - C E Maki
- Midwest Biomedical Research: Center for Metabolic and Cardiovascular Health, Addison, IL, USA.,MB Clinical Research, Boca Raton, FL, USA
| | - M L Wilcox
- MB Clinical Research, Boca Raton, FL, USA
| | - K C Maki
- Midwest Biomedical Research: Center for Metabolic and Cardiovascular Health, Addison, IL, USA.,MB Clinical Research, Boca Raton, FL, USA.,Department of Applied Health Science, School of Public Health, Indiana University, Bloomington, IN, USA
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12
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Greger M. A Whole Food Plant-Based Diet Is Effective for Weight Loss: The Evidence. Am J Lifestyle Med 2020; 14:500-510. [PMID: 32922235 PMCID: PMC7444011 DOI: 10.1177/1559827620912400] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
What does the best available balance of scientific evidence show is the optimum way to lose weight? Calorie density, water content, protein source, and other components significantly influence the effectiveness of different dietary regimes for weight loss. By "walling off your calories," preferentially deriving your macronutrients from structurally intact plant foods, some calories remain trapped within indigestible cell walls, which then blunts the glycemic impact, activates the ileal brake, and delivers prebiotics to the gut microbiome. This may help explain why the current evidence indicates that a whole food, plant-based diet achieves greater weight loss compared with other dietary interventions that do not restrict calories or mandate exercise. So, the most effective diet for weight loss appears to be the only diet shown to reverse heart disease in the majority of patients. Plant-based diets have also been found to help treat, arrest, and reverse other leading chronic diseases such as type 2 diabetes and hypertension, whereas low-carbohydrate diets have been found to impair artery function and worsen heart disease, the leading killer of men and women in the United States. A diet centered on whole plant foods appears to be a safe, simple, sustainable solution to the obesity epidemic.
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Eriksen AK, Brunius C, Mazidi M, Hellström PM, Risérus U, Iversen KN, Fristedt R, Sun L, Huang Y, Nørskov NP, Knudsen KEB, Kyrø C, Olsen A, Tjønneland A, Dicksved J, Landberg R. Effects of whole-grain wheat, rye, and lignan supplementation on cardiometabolic risk factors in men with metabolic syndrome: a randomized crossover trial. Am J Clin Nutr 2020; 111:864-876. [PMID: 32097450 DOI: 10.1093/ajcn/nqaa026] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 01/31/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND A whole-grain (WG)-rich diet has shown to have potential for both prevention and treatment of the metabolic syndrome (MetS), which is a cluster of risk factors that increase the risk of type 2 diabetes and cardiovascular disease. Different WGs may have different health effects. WG rye, in particular, may improve glucose homeostasis and blood lipids, possibly mediated through fermentable dietary fiber and lignans. Recent studies have also suggested a crucial role of the gut microbiota in response to WG. OBJECTIVES The aim was to investigate WG rye, alone and with lignan supplements [secoisolariciresinol diglucoside (SDG)], and WG wheat diets on glucose tolerance [oral-glucose-tolerance test (OGTT)], other cardiometabolic outcomes, enterolignans, and microbiota composition. Moreover, we exploratively evaluated the role of gut microbiota enterotypes in response to intervention diets. METHODS Forty men with MetS risk profile were randomly assigned to WG diets in an 8-wk crossover study. The rye diet was supplemented with 280 mg SDG at weeks 4-8. Effects of treatment were evaluated by mixed-effects modeling, and effects on microbiota composition and the role of gut microbiota as a predictor of response to treatment were analyzed by random forest plots. RESULTS The WG rye diet (± SDG supplements) did not affect the OGTT compared with WG wheat. Total and LDL cholesterol were lowered (-0.06 and -0.09 mmol/L, respectively; P < 0.05) after WG rye compared with WG wheat after 4 wk but not after 8 wk. WG rye resulted in higher abundance of Bifidobacterium [fold-change (FC) = 2.58, P < 0.001] compared with baseline and lower abundance of Clostridium genus compared with WG wheat (FC = 0.54, P = 0.02). The explorative analyses suggest that baseline enterotype is associated with total and LDL-cholesterol response to diet. CONCLUSIONS WG rye, alone or with SDG supplementation, compared with WG wheat did not affect glucose metabolism but caused transient LDL-cholesterol reduction. The effect of WG diets appeared to differ according to enterotype. This trial was registered at www.clinicaltrials.gov as NCT02987595.
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Affiliation(s)
- Anne K Eriksen
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden.,Unit of Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Carl Brunius
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Mohsen Mazidi
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Per M Hellström
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Ulf Risérus
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
| | - Kia N Iversen
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Rikard Fristedt
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Li Sun
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Yi Huang
- Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, Uppsala, Sweden.,College of Animal Science and Technology, Guangxi University, Nanning, China
| | | | | | - Cecilie Kyrø
- Unit of Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Anja Olsen
- Unit of Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Anne Tjønneland
- Unit of Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Johan Dicksved
- Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Rikard Landberg
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
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Koecher KJ, McKeown NM, Sawicki CM, Menon RS, Slavin JL. Effect of whole-grain consumption on changes in fecal microbiota: a review of human intervention trials. Nutr Rev 2020; 77:487-497. [PMID: 31086952 DOI: 10.1093/nutrit/nuz008] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Whole-grain (WG) consumption is known to have beneficial effects on human health. However, the influence of WGs on the microbiota is not well understood. To evaluate how WG intake modulates the gut microbiota composition, a literature review of human intervention studies was conducted. Whole grain, whether a mixed WG food or diet (n = 5) or specific WG intervention (WG wheat [n = 5], barley [n = 2], rye [n = 2] or rice, corn, or oats [n = 1 for each]), generally modified microbiota composition but did so inconsistently across measurements of microbial diversity and taxa. Interventions used both parallel and crossover designs and varied from single product substitutions to fully controlled diets with WG exposures of 3-12 weeks. The effect of amount of WG was difficult to capture due to variable reporting of WG. Methods used to measure microbiota varied in ability to resolve changes at different taxonomic levels, and comparisons of interventions using similar methods was lacking. Because many dietary components besides WGs alter gut microbiota, further research is needed, particularly in linking microbiota changes to health outcomes, and study design recommendations for future research on WGs and microbiota are warranted.
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Affiliation(s)
| | - Nicola M McKeown
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts, USA
| | - Caleigh M Sawicki
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts, USA
| | - Ravi S Menon
- General Mills, Inc., Minneapolis, Minnesota, USA
| | - Joanne L Slavin
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, Minnesota, USA
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Najjar RS, Feresin RG. Plant-Based Diets in the Reduction of Body Fat: Physiological Effects and Biochemical Insights. Nutrients 2019; 11:nu11112712. [PMID: 31717463 PMCID: PMC6893503 DOI: 10.3390/nu11112712] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/30/2019] [Accepted: 11/05/2019] [Indexed: 02/07/2023] Open
Abstract
Obesity affects over one-third of Americans and increases the risk of cardiovascular disease and type II diabetes. Interventional trials have consistently demonstrated that consumption of plant-based diets reduces body fat in overweight and obese subjects, even when controlling for energy intake. Nonetheless, the mechanisms underlying this effect have not been well-defined. This review discusses six major dietary mechanisms that may lead to reduced body fat. These include (1) reduced caloric density, (2) improved gut microbiota symbiosis, (3) increased insulin sensitivity, (4) reduced trimethylamine-N-oxide (TMAO), (5) activation of peroxisome proliferator-activated receptors (PPARs), and (6) over-expression of mitochondrial uncoupling proteins. Collectively, these factors improve satiety and increase energy expenditure leading to reduced body weight.
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Mano F, Ikeda K, Joo E, Fujita Y, Yamane S, Harada N, Inagaki N. The Effect of White Rice and White Bread as Staple Foods on Gut Microbiota and Host Metabolism. Nutrients 2018; 10:nu10091323. [PMID: 30231542 PMCID: PMC6164422 DOI: 10.3390/nu10091323] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 09/15/2018] [Accepted: 09/17/2018] [Indexed: 12/20/2022] Open
Abstract
The purpose of this study was to examine the influence of two kinds of major Japanese staple foods, white rice and white bread, on gut microbiota against the background in which participants eat common side dishes. Seven healthy subjects completed the dietary intervention with two 1-week test periods with a 1-week wash-out period in cross-over design (UMIN registration UMIN000023142). White bread or white rice and 21 frozen prepared side dishes were consumed during the test periods. At baseline and at the end of each period, fasting blood samples, breath samples, and fecal samples were collected. For fecal samples, 16S rRNA gene sequencing was used to analyze the gut microbiota. After the bread period, the abundance of fecal Bifidobacterium genus (19.2 ± 14.5 vs. 6.2 ± 6.6 (%), p = 0.03), fasting glucagon-like peptide 1 (GLP-1) (13.6 ± 2.0 vs. 10.5 ± 2.9 (pg/mL), p = 0.03), and breath hydrogen (23.4 ± 9.9 vs. 8.2 ± 5.5 (ppm), p = 0.02) were significantly higher than those of after the rice period. Plasma SCFAs also tended to be higher after the bread period. White bread contains more dietary fiber than refined short grain rice. These findings suggest that indigestible carbohydrate intake from short grain rice as a staple food may be smaller than that of white bread.
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Affiliation(s)
- Fumika Mano
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.
| | - Kaori Ikeda
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.
| | - Erina Joo
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.
| | - Yoshihito Fujita
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.
| | - Shunsuke Yamane
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.
| | - Norio Harada
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.
| | - Nobuya Inagaki
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.
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18
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Sandberg J, Kovatcheva-Datchary P, Björck I, Bäckhed F, Nilsson A. Abundance of gut Prevotella at baseline and metabolic response to barley prebiotics. Eur J Nutr 2018; 58:2365-2376. [PMID: 30046942 PMCID: PMC6689319 DOI: 10.1007/s00394-018-1788-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 07/17/2018] [Indexed: 12/21/2022]
Abstract
PURPOSE We previously showed that short-term intervention with barley kernel bread (BKB) improved glucose tolerance. However, glucose tolerance was not improved in a subset of individuals (non-responders) who were characterized by a low Prevotella/Bacteroides ratio. The purpose of the present study was to investigate if the baseline Prevotella/Bacteroides ratio can be used to stratify metabolic responders and non-responders to barley dietary fiber (DF). METHODS Fecal samples were collected from 99 healthy humans with BMI < 28 kg/m2 between 50 and 70 years old. The abundance of fecal Prevotella and Bacteroides was quantified with 16S rRNA quantitative PCR. 33 subjects were grouped in three groups: subjects with highest Prevotella/Bacteroides ratios, "HP", n = 12; subjects with lowest Prevotella/Bacteroides ratios, "LP", n = 13; and subjects with high abundance of both measured bacteria, HPB, n = 8. A 3-day randomized crossover intervention with BKB and white wheat bread (control) was performed. Cardiometabolic test variables were analyzed the next day following a standardized breakfast. RESULTS The BKB intervention lowered the blood glucose responses to the breakfast independently of Prevotella/Bacteroides ratios (P < 0.01). However, independently of intervention, the HP group displayed an overall lower insulin response and lower IL-6 concentrations compared with the LP group (P < 0.05). Furthermore, the groups HP and HPB showed lower hunger sensations compared to the LP group (P < 0.05). CONCLUSIONS Here we show that the abundance of gut Prevotella and Bacteroides at baseline did not stratify metabolic responders and non-responders to barley DF intervention. However, our results indicate the importance of gut microbiota in host metabolic regulation, further suggesting that higher Prevotella/Bacteroides ratio may be favorable. CLINICALTRIALS. GOV ID NCT02427555.
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Affiliation(s)
- Jonna Sandberg
- Department of Food Technology, Engineering and Nutrition, Lund University, Lund, Sweden. .,Food for Health Science Centre, Lund University, Lund, Sweden.
| | - Petia Kovatcheva-Datchary
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Inger Björck
- Food for Health Science Centre, Lund University, Lund, Sweden
| | - Fredrik Bäckhed
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, University of Gothenburg, Gothenburg, Sweden.,Faculty of Health and Medical Sciences, Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Anne Nilsson
- Department of Food Technology, Engineering and Nutrition, Lund University, Lund, Sweden.,Food for Health Science Centre, Lund University, Lund, Sweden
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Papakonstantinou E, Chaloulos P, Papalexi A, Mandala I. Effects of bran size and carob seed flour of optimized bread formulas on glycemic responses in humans: A randomized clinical trial. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.04.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
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Abstract
BACKGROUND/OBJECTIVES The amylose-amylopectin ratio influences starch properties. A higher amylose content is associated with slower starch digestion thus reducing the postprandial plasma glucose response and improving the overall postprandial metabolism. So far, limited evidence is available on the metabolic effect of wheat-based foods rich in amylose. This randomised controlled study investigated the acute metabolic effects of amylose-rich wheat-based rusks in overweight subjects focusing on potential mechanisms. SUBJECTS/METHODS Ten overweight subjects consumed in random order two test meals differing only in the carbohydrate source: rusks prepared with amylose-rich wheat flour (ARR) or conventional wheat flour (control). Blood samples were taken at fasting and over 4 h after the meal. Satiety and intestinal fermentation were evaluated by VAS and H2-breath test, respectively. RESULTS ARR reduced plasma glucose response during the first two hours after the meal and the desire to eat, and increased breath hydrogen concentration at 4 h (p < 0.05 for all). Moreover, according to computational models, the ARR slightly reduced intestinal glucose absorption in the first hour after the meal and increased the overall postprandial insulin sensitivity. CONCLUSIONS Rusks made with amylose-rich flour could be useful for improving postprandial glucose metabolism and reduce the desire to eat, thus possibly contributing to the prevention and treatment of overweight/obesity, impaired glucose tolerance or diabetes.
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Sagnelli D, Chessa S, Mandalari G, Di Martino M, Sorndech W, Mamone G, Vincze E, Buillon G, Nielsen DS, Wiese M, Blennow A, Hebelstrup KH. Low glycaemic index foods from wild barley and amylose-only barley lines. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.11.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Impact of sourdough fermentation on appetite and postprandial metabolic responses - a randomised cross-over trial with whole grain rye crispbread. Br J Nutr 2017; 118:686-697. [PMID: 29185930 DOI: 10.1017/s000711451700263x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Sourdough fermentation is considered to have beneficial effects on postprandial satiety and metabolic responses, but studies demonstrating effects at physiological conditions are lacking. The aim of this acute breakfast intervention study was to determine the effect of consumption of sourdough-fermented and unfermented rye crispbread on self-rated appetite, postprandial glucose and insulin response in healthy subjects. In all, twenty-four Swedish adults were included in a single-blinded, randomised cross-over trial. Three crispbreads (sourdough-fermented and unfermented whole grain rye and yeast-fermented refined wheat as control) were consumed as part of a standardised breakfast. Subjective appetite score, assessed using visual analogue scale, and plasma glucose and insulin concentrations were measured at baseline and postprandially until 360 and 240 min, respectively. Structural changes and viscosity during mastication and gastric digestion were investigated using in vitro methods. Hunger and desire to eat were lower (P<0·05) based on AUC measurements after intake of sourdough-fermented rye crispbread compared with after intake of yeast-fermented refined wheat crispbread. On the basis of AUC (0-230 min), insulin response was lowest after intake of unfermented rye crispbread compared with sourdough-fermented rye and yeast-fermented refined wheat crispbread. Degradation of viscous fibres and faster bolus disintegration for the sourdough-fermented bread may partly explain the less favourable metabolic responses compared with unfermented bread. Our results showed that food processing affects the composition and structural characteristics of rye bread, which has implications for appetite and metabolic responses.
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Huang F, Nilholm C, Roth B, Linninge C, Höglund P, Nyman M, Ohlsson B. Anthropometric and metabolic improvements in human type 2 diabetes after introduction of an Okinawan-based Nordic diet are not associated with changes in microbial diversity or SCFA concentrations. Int J Food Sci Nutr 2017; 69:729-740. [PMID: 29199483 DOI: 10.1080/09637486.2017.1408059] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The Okinawan-based Nordic (O-BN) diet improves anthropometry and metabolism in type 2 diabetes mellitus (T2DM) patients. The aim of this study was to study mechanisms behind improvements by examining Enterobacteriaceae abundance, microbial diversity, and concentrations of short-chain fatty acids (SCFAs). A secondary aim was exploring if metformin treatment affects microbiota or SCFAs. Thirty T2DM patients received the O-BN diet for 12 weeks. Faecal and blood samples were collected at baseline, 12 and 28 weeks. Although patients experienced weight loss and improved metabolic parameters, there were no significant changes in Enterobacteriaceae abundance or microbial diversity. Patients on metformin displayed higher Enterobacteriaceae abundance throughout the study (p = .008, p = .038, and p = .001, respectively). Isovaleric acid was decreased after 12 weeks (p = .018). Butyric acid was decreased at follow-up (p = .007). Improved anthropometry and metabolism in T2DM after introduction of the O-BN diet is not associated with changes in Enterobacteriaceae abundance, microbial diversity or SCFA concentrations.
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Affiliation(s)
- Fang Huang
- a Food for Health Science Centre , Lund University , Lund , Sweden
| | - Clara Nilholm
- b Department of Internal Medicine , Skane University Hospital, Lund University , Malmö , Sweden
| | - Bodil Roth
- b Department of Internal Medicine , Skane University Hospital, Lund University , Malmö , Sweden
| | - Caroline Linninge
- c Department of Food Technology, Engineering and Nutrition , Lund University , Lund , Sweden
| | - Peter Höglund
- d Department of Clinical Chemistry & Pharmacology , Skane University Hospital, Lund University , Lund , Sweden
| | - Margareta Nyman
- a Food for Health Science Centre , Lund University , Lund , Sweden
| | - Bodil Ohlsson
- b Department of Internal Medicine , Skane University Hospital, Lund University , Malmö , Sweden
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Burbach K, Strang EJP, Mosenthin R, Camarinha-Silva A, Seifert J. Porcine intestinal microbiota is shaped by diet composition based on rye or triticale. J Appl Microbiol 2017; 123:1571-1583. [PMID: 28960763 DOI: 10.1111/jam.13595] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 09/12/2017] [Accepted: 09/17/2017] [Indexed: 01/03/2023]
Abstract
AIMS The present study aimed to compare the microbiota composition from pigs fed different cereal grain types, either rye or triticale, as sole energy source. METHODS AND RESULTS Ileal digesta and faeces were sampled from eight pigs of each experiment. Illumina amplicon sequencing of the 16S rRNA gene was used to analyse the microbiota. Concentrations of short-chain fatty acids and ammonia were determined from faecal samples. The grain type revealed significant alterations in the overall microbiota structure. The rye-based diet was associated with an increased abundance of Lactobacillus in ileal digesta and Streptococcus in faeces and significantly higher concentrations of faecal short-chain fatty acids and ammonia compared to triticale. However, triticale significantly promoted the abundance of Streptococcus in ileal digesta and Clostridium sensu stricto in faeces. CONCLUSIONS Diets based on rye or triticale affect varying intestinal microbiota, both of taxonomical and metabolic structure, with rye indicating an enhanced saccharolytic potential and triticale a more cellulolytic potential. SIGNIFICANCE AND IMPACT OF THE STUDY Nutrient composition of rye and triticale are attractive for porcine nutrition. Both cereal grains show varying stimuli on the microbiota composition and microbial products of the ileum and faeces.
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Affiliation(s)
- K Burbach
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
| | - E J P Strang
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
| | - R Mosenthin
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
| | - A Camarinha-Silva
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
| | - J Seifert
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
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Papakonstantinou E, Orfanakos N, Farajian P, Kapetanakou AE, Makariti IP, Grivokostopoulos N, Ha MA, Skandamis PN. Short-term effects of a low glycemic index carob-containing snack on energy intake, satiety, and glycemic response in normal-weight, healthy adults: Results from two randomized trials. Nutrition 2017; 42:12-19. [PMID: 28870473 DOI: 10.1016/j.nut.2017.05.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/19/2017] [Accepted: 05/17/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVES The potential positive health effects of carob-containing snacks are largely unknown. Therefore, the aims of these studies were to determine the glycemic index (GI) of a carob snack compared with chocolate cookie containing equal amounts of available carbohydrates and to compare the effects of a carob versus chocolate cookie preload consumed as snack before a meal on (a) short-term satiety response measured by subsequent ad libitum meal intake, (b) subjective satiety as assessed by visual analog scales and (c) postprandial glycemic response. METHODS Ten healthy, normal-weight volunteers participated in GI investigation. Then, 50 healthy, normal-weight individuals consumed, crossover, in random order, the preloads as snack, with 1-wk washout period. Ad libitum meal (lunch and dessert) was offered. Capillary blood glucose samples were collected at baseline, 2 h after breakfast, just before preload consumption, 2 h after preload, 3 h after preload, just before meal (lunch and dessert), 1 h after meal, and 2 h after meal consumption. RESULTS The carob snack was a low GI food, whereas the chocolate cookie was a high GI food (40 versus 78, respectively, on glucose scale). Consumption of the carob preload decreased the glycemic response to a following meal and to the individual's feelings of hunger, desire to eat, preoccupation with food, and thirst between snack and meal, as assessed with the use of visual analog scales. Subsequently, participants consumed less amounts of food (g) and had lower total energy intake at mealtimes. CONCLUSIONS The carob snack led to increased satiety, lower energy intake at meal, and decreased postmeal glycemic response possibly due to its low GI value. Identifying foods that promote satiety and decrease glycemic response without increasing the overall energy intake may offer advantages to body weight and glycemic control.
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Affiliation(s)
- Emilia Papakonstantinou
- Unit of Human Nutrition, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece.
| | - Nickolaos Orfanakos
- Unit of Human Nutrition, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Paul Farajian
- Unit of Human Nutrition, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Anastasia E Kapetanakou
- Laboratory of Food Quality Control and Hygiene, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Ifigenia P Makariti
- Laboratory of Food Quality Control and Hygiene, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Nikolaos Grivokostopoulos
- Laboratory of Food Quality Control and Hygiene, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Marie-Ann Ha
- Medical Science, Anglia Ruskin University, Cambridge, United Kingdom
| | - Panagiotis N Skandamis
- Laboratory of Food Quality Control and Hygiene, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
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Sandberg JC, Björck IME, Nilsson AC. Effects of whole grain rye, with and without resistant starch type 2 supplementation, on glucose tolerance, gut hormones, inflammation and appetite regulation in an 11-14.5 hour perspective; a randomized controlled study in healthy subjects. Nutr J 2017; 16:25. [PMID: 28431559 PMCID: PMC5401465 DOI: 10.1186/s12937-017-0246-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 04/17/2017] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND The prevalence of obesity is increasing worldwide and prevention is needed. Whole grain has shown potential to lower the risk of obesity, cardiovascular disease and type 2 diabetes. One possible mechanism behind the benefits of whole grain is the gut fermentation of dietary fiber (DF), e.g. non-starch polysaccharides and resistant starch (RS), in whole grain. The purpose of the study is to investigate the effect of whole grain rye-based products on glucose- and appetite regulation. METHOD Twenty-one healthy subjects were provided four rye-based evening test meals in a crossover overnight study design. The test evening meals consisted of either whole grain rye flour bread (RFB) or a 1:1 ratio of whole grain rye flour and rye kernels bread (RFB/RKB), with or without added resistant starch (+RS). White wheat flour bread (WWB) was used as reference evening meal. Blood glucose, insulin, PYY, FFA, IL-6 as well as breath H2 and subjective rating of appetite were measured the following morning at fasting and repeatedly up to 3.5 h after a standardized breakfast consisting of WWB. Ad libitum energy intake was determined at lunch, 14.5 h after evening test and reference meals, respectively. RESULTS The evening meal with RFB/RKB + RS decreased postprandial glucose- and insulin responses (iAUC) (P < 0.05) and increased the gut hormone PYY in plasma the following morning 0-120 min after the standardized breakfast, compared to WWB (P = 0.01). Moreover, RFB increased subjective satiety and decreased desire to eat, and both RFB and RFB/RKB decreased feeling of hunger (AUC 0-210 min). All rye-based evening meals decreased or tended to decrease fasting FFA (P < 0.05, RFB/RKB: P = 0.057) and increased breath hydrogen concentration (0-120 min, P < 0.001). No effects were noted on energy intake at lunch or inflammatory marker IL-6 (0 + 180 min) after the rye-based evening meals, compared to WWB. CONCLUSION Whole grain rye bread has the potential to improve cardiometabolic variables in an 11-14.5 h perspective in healthy humans. The combination RFB/RKB + RS positively affected biomarkers of glucose- and appetite regulation in a semi-acute perspective. Meanwhile, RFB and RFB/RKB improved subjective appetite ratings. The effects probably emanate from gut fermentation events. TRIAL REGISTRATION The study was registered at: ClinicalTrials.gov, register number NCT02347293 ( www.clinicaltrials.gov/ct2/show/NCT02347293 ). Registered 15 January 2015.
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Affiliation(s)
- Jonna C Sandberg
- Food for Health Science Centre, Lund University, SE-221 00, Lund, Sweden.
| | - Inger M E Björck
- Food for Health Science Centre, Lund University, SE-221 00, Lund, Sweden
| | - Anne C Nilsson
- Food for Health Science Centre, Lund University, SE-221 00, Lund, Sweden
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Hume MP, Nicolucci AC, Reimer RA. Prebiotic supplementation improves appetite control in children with overweight and obesity: a randomized controlled trial. Am J Clin Nutr 2017; 105:790-799. [PMID: 28228425 DOI: 10.3945/ajcn.116.140947] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 01/26/2017] [Indexed: 11/14/2022] Open
Abstract
Background: Prebiotics have been shown to improve satiety in adults with overweight and obesity; however, studies in children are limited.Objective: We examined the effects of prebiotic supplementation on appetite control and energy intake in children with overweight and obesity.Design: This study was a randomized, double-blind, placebo-controlled trial. Forty-two boys and girls, ages 7-12 y, with a body mass index (BMI) of ≥85th percentile were randomly assigned to 8 g oligofructose-enriched inulin/d or placebo (maltodextrin) for 16 wk. Objective measures of appetite included energy intake at an ad libitum breakfast buffet, 3-d food records, and fasting satiety hormone concentrations. Subjective appetite ratings were obtained from visual analog scales before and after the breakfast. Children's Eating Behavior Questionnaires were also completed by caregivers.Results: Compared with placebo, prebiotic intake resulted in significantly higher feelings of fullness (P = 0.04) and lower prospective food consumption (P = 0.03) at the breakfast buffet at 16 wk compared with baseline. Compared with placebo, prebiotic supplementation significantly reduced energy intake at the week 16 breakfast buffet in 11- and 12-y-olds (P = 0.04) but not in 7- to 10-y-olds. Fasting adiponectin (P = 0.04) and ghrelin (P = 0.03) increased at 16 wk with the prebiotic compared with placebo. In intent-to-treat analysis, there was a trend for prebiotic supplementation to reduce BMI z score to a greater extent than placebo (-3.4%; P = 0.09) and a significant -3.8% reduction in per-protocol analysis (P = 0.043).Conclusions: Independent of other lifestyle changes, prebiotic supplementation in children with overweight and obesity improved subjective appetite ratings. This translated into reduced energy intake in a breakfast buffet in older but not in younger children. This simple dietary change has the potential to help with appetite regulation in children with obesity. This trial was registered at clinicaltrials.gov as NCT02125955.
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Affiliation(s)
| | | | - Raylene A Reimer
- Faculty of Kinesiology and .,Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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Effects of whole-grain rye porridge with added inulin and wheat gluten on appetite, gut fermentation and postprandial glucose metabolism: a randomised, cross-over, breakfast study. Br J Nutr 2017; 116:2139-2149. [PMID: 28069076 DOI: 10.1017/s0007114516004153] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Whole-grain rye foods reduce appetite, insulin and sometimes glucose responses. Increased gut fermentation and plant protein may mediate the effect. The aims of the present study were to investigate whether the appetite-suppressing effects of whole-grain rye porridge could be enhanced by replacing part of the rye with fermented dietary fibre and plant protein, and to explore the role of gut fermentation on appetite and metabolic responses over 8 h. We conducted a randomised, cross-over study using two rye porridges (40 and 55 g), three 40-g rye porridges with addition of inulin:gluten (9:3; 6:6; 3:9 g) and a refined wheat bread control (55 g), served as part of complete breakfasts. A standardised lunch and an ad libitum dinner were served 4 and 8 h later, respectively. Appetite, breath hydrogen and methane, glucose, insulin and glucagon-like peptide-1 (GLP-1) responses were measured over 8 h. Twenty-one healthy men and women, aged 23-60 years, with BMI of 21-33 kg/m2 participated in this study. Before lunch, the 55-g rye porridges lowered hunger by 20 % and desire to eat by 22 % and increased fullness by 29 % compared with wheat bread (P<0·05). Breath hydrogen increased proportionally to dietary fibre content (P<0·05). Plasma glucose after lunch was 6 % lower after the 55-g rye porridges compared with wheat bread (P<0·05) and correlated to breath hydrogen (P<0·001). No differences were observed in ad libitum food intake, insulin or GLP-1. We conclude that no further increase in satiety was observed when replacing part of the rye with inulin and gluten compared with plain rye porridges.
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Zaremba SMM, Drummond S, Steinert RE. The need to standardize ad libitum eating protocols in dietary fibre appetite research. Eur J Clin Nutr 2016; 71:570-572. [PMID: 28000690 DOI: 10.1038/ejcn.2016.253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 09/30/2016] [Accepted: 10/26/2016] [Indexed: 11/09/2022]
Affiliation(s)
- S M M Zaremba
- Department of Dietetics, Nutrition and Biological Sciences, Queen Margaret University, Edinburgh, UK
| | - S Drummond
- Department of Dietetics, Nutrition and Biological Sciences, Queen Margaret University, Edinburgh, UK
| | - R E Steinert
- DSM Nutritional Products Ltd. R&D Human Nutrition and Health, Basel, Switzerland
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Abstract
PURPOSE OF REVIEW The scope of this review is to summarize recent studies assessing the role of meal composition on appetite sensation. RECENT FINDINGS Currently, data confirm a positive effect on appetite sensations following protein-rich meals, suggesting that at least 25-30-g protein/meal provide potential improvements on appetite, but further long-term studies are required to confirm the results. A greater interest has been showed in the interaction between short-chain fatty acids produced by gut microbiota, following dietary fiber consumption, and appetite sensation, but research is ongoing. Finally, as reflected in the recent literature, new systematic reviews should be carried out to assess the effect of dietary fibers on appetite sensation. SUMMARY Meal composition, in terms of nutrients, widely differs in the ability to affect appetite sensation. This mostly depends on the content of protein and dietary fibers in a meal. The effect of higher protein intake on appetite sensation has been well documented with positive results, whereas dietary fibers, although the majority of evidence suggests positive results, still show inconsistent data because of various methodological approaches. Generally, more research both in the short and long term is required to investigate the underlying mechanism associated with appetite sensation.
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Affiliation(s)
- Iolanda Cioffi
- Department of Clinical Medicine and Surgery, Internal Medicine and Clinical Nutrition Unit, Federico II University, Naples, Italy
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Sandberg JC, Björck IME, Nilsson AC. Rye-Based Evening Meals Favorably Affected Glucose Regulation and Appetite Variables at the Following Breakfast; A Randomized Controlled Study in Healthy Subjects. PLoS One 2016; 11:e0151985. [PMID: 26990559 PMCID: PMC4798690 DOI: 10.1371/journal.pone.0151985] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 03/07/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Whole grain has shown potential to prevent obesity, cardiovascular disease and type 2 diabetes. Possible mechanism could be related to colonic fermentation of specific indigestible carbohydrates, i.e. dietary fiber (DF). The aim of this study was to investigate effects on cardiometabolic risk factors and appetite regulation the next day when ingesting rye kernel bread rich in DF as an evening meal. METHOD Whole grain rye kernel test bread (RKB) or a white wheat flour based bread (reference product, WWB) was provided as late evening meals to healthy young adults in a randomized cross-over design. The test products RKB and WWB were provided in two priming settings: as a single evening meal or as three consecutive evening meals prior to the experimental days. Test variables were measured in the morning, 10.5-13.5 hours after ingestion of RKB or WWB. The postprandial phase was analyzed for measures of glucose metabolism, inflammatory markers, appetite regulating hormones and short chain fatty acids (SCFA) in blood, hydrogen excretion in breath and subjective appetite ratings. RESULTS With the exception of serum CRP, no significant differences in test variables were observed depending on length of priming (P>0.05). The RKB evening meal increased plasma concentrations of PYY (0-120 min, P<0.001), GLP-1 (0-90 min, P<0.05) and fasting SCFA (acetate and butyrate, P<0.05, propionate, P = 0.05), compared to WWB. Moreover, RKB decreased blood glucose (0-120 min, P = 0.001), serum insulin response (0-120 min, P<0.05) and fasting FFA concentrations (P<0.05). Additionally, RKB improved subjective appetite ratings during the whole experimental period (P<0.05), and increased breath hydrogen excretion (P<0.001), indicating increased colonic fermentation activity. CONCLUSION The results indicate that RKB evening meal has an anti-diabetic potential and that the increased release of satiety hormones and improvements of appetite sensation could be beneficial in preventing obesity. These effects could possibly be mediated through colonic fermentation. TRIAL REGISTRATION ClinicalTrials.gov NCT02093481.
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Affiliation(s)
- Jonna C. Sandberg
- Food for Health Science Centre, Lund University, SE-221 00, Lund, Sweden
| | - Inger M. E. Björck
- Food for Health Science Centre, Lund University, SE-221 00, Lund, Sweden
| | - Anne C. Nilsson
- Food for Health Science Centre, Lund University, SE-221 00, Lund, Sweden
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Yong MK, Solah VA, Johnson SK, Meng X, Kerr DA, James AP, Fenton HK, Gahler RJ, Wood S. Effects of a viscous-fibre supplemented evening meal and the following un-supplemented breakfast on post-prandial satiety responses in healthy women. Physiol Behav 2015; 154:34-9. [PMID: 26562186 DOI: 10.1016/j.physbeh.2015.11.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 08/26/2015] [Accepted: 11/07/2015] [Indexed: 12/25/2022]
Abstract
The post-prandial satiety response and "second-meal effect" of a viscous fibre supplement PolyGlycopleX(®) (PGX(®)) was evaluated in a single-blind, randomised controlled crossover study of 14 healthy adult women. The two hour post-prandial satiety response, expressed as the area under the curve (AUC) of perceived hunger/fullness score versus post-prandial time, of a standardised evening meal with concurrent intake of either PGX softgel or rice flour softgel (control) was determined. On the following morning, after an overnight fast, the four hour satiety response to a standardised breakfast with no softgel supplementation was assessed. A significantly higher satiety response (AUC) to the standard dinner for the PGX-supplemented dinner compared with the control dinner (p=0.001) was found. No significant difference (p=0.09) was observed in the satiety response (AUC) of the breakfast regardless of which supplemented-dinner had been consumed prior, however the p value indicated a trend towards a higher response to the breakfast following the PGX-supplemented dinner. The fullness scores of the breakfast following the PGX-supplemented dinner at 15, 30, 90, 120, 150, 180, 210 and 240min post-prandial were significantly higher than those for the breakfast following the control dinner (p=<0.001, 0.007, 0.009, 0.009, 0.049, 0.03, 0.003 and <0.001 respectively). PGX supplementation at dinner increased the satiety effects of both the dinner itself and the subsequent un-supplemented breakfast; a "second meal effect" indicting the potential for this fibre supplement to induce extended satiety.
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Affiliation(s)
- Mei Kei Yong
- Nutrition, Dietetics and Food Science, School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia 6845, Australia.
| | - Vicky A Solah
- Nutrition, Dietetics and Food Science, School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia 6845, Australia.
| | - Stuart K Johnson
- Nutrition, Dietetics and Food Science, School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia 6845, Australia.
| | - Xingqiong Meng
- Flinders Centre for Innovation in Cancer, School of Medicine, Flinders University, Adelaide, South Australia, Australia.
| | - Deborah A Kerr
- Nutrition, Dietetics and Food Science, School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia 6845, Australia.
| | - Anthony P James
- Nutrition, Dietetics and Food Science, School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia 6845, Australia.
| | - Haelee K Fenton
- Nutrition, Dietetics and Food Science, School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia 6845, Australia.
| | | | - Simon Wood
- Nutrition, Dietetics and Food Science, School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia 6845, Australia; Food, Nutrition and Health Program, University of British Columbia, Vancouver, BC, Canada; InovoBiologic Inc., Calgary, AB, Canada.
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Cooper DN, Martin RJ, Keim NL. Does Whole Grain Consumption Alter Gut Microbiota and Satiety? Healthcare (Basel) 2015; 3:364-92. [PMID: 27417768 PMCID: PMC4939539 DOI: 10.3390/healthcare3020364] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 05/19/2015] [Accepted: 05/22/2015] [Indexed: 12/25/2022] Open
Abstract
This review summarizes recent studies examining whole grain consumption and its effect on gut microbiota and satiety in healthy humans. Studies comparing whole grains to their refined grain counterparts were considered, as were studies comparing different grain types. Possible mechanisms linking microbial metabolism and satiety are described. Clinical trials show that whole grain wheat, maize, and barley alter the human gut microbiota, but these findings are based on a few studies that do not include satiety components, so no functional claims between microbiota and satiety can be made. Ten satiety trials were evaluated and provide evidence that whole oats, barley, and rye can increase satiety, whereas the evidence for whole wheat and maize is not compelling. There are many gaps in the literature; no one clinical trial has examined the effects of whole grains on satiety and gut microbiota together. Once understanding the impact of whole grains on satiety and microbiota is more developed, then particular grains might be used for better appetite control. With this information at hand, healthcare professionals could make individual dietary recommendations that promote satiety and contribute to weight control.
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Affiliation(s)
- Danielle N Cooper
- Department of Nutrition, University of California at Davis, 1 Shields Ave, Davis, CA 95616, USA.
| | - Roy J Martin
- Department of Nutrition, University of California at Davis, 1 Shields Ave, Davis, CA 95616, USA.
- USDA-ARS, Western Human Nutrition Research Center, 430 West Health Sciences Drive, Davis, CA 95616, USA.
| | - Nancy L Keim
- Department of Nutrition, University of California at Davis, 1 Shields Ave, Davis, CA 95616, USA.
- USDA-ARS, Western Human Nutrition Research Center, 430 West Health Sciences Drive, Davis, CA 95616, USA.
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Thorup AC, Gregersen S, Jeppesen PB. Ancient Wheat Diet Delays Diabetes Development in a Type 2 Diabetes Animal Model. Rev Diabet Stud 2015; 11:245-57. [PMID: 26177485 DOI: 10.1900/rds.2014.11.245] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
AIM The main objective was to investigate the physiological effects of ancient wheat whole grain flour diets on the development and progression of type 2 diabetes in Zucker diabetic fatty (ZDF) rats, and specifically to look at the acute glycemic responses. METHODS An intervention study was conducted, involving 40 ZDF rats consuming one of 5 different diets (emmer, einkorn, spelt, rye and refined wheat) for 9 weeks. Refined wheat flour and whole grain rye flour were included as negative and positive controls, respectively. RESULTS After 9 weeks of intervention, a downregulation of the hepatic genes PPAR-α, GLUT2, and SREBP-1c was observed in the emmer group compared to the control wheat group. Likewise, expression of hepatic SREBP-2 was lower for emmer, einkorn, and rye compared with the control group. Furthermore, spelt and rye induced a low acute glycemic response. The wheat group had higher HDL- and total cholesterol levels. CONCLUSIONS Ancient wheat diets caused a downregulation of key regulatory genes involved in glucose and fat metabolism, equivalent to a prevention or delay of diabetes development. Spelt and rye induced a low acute glycemic response compared to wheat.
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Affiliation(s)
- Anne Cathrine Thorup
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Tage-Hansens Gade 2, Aarhus C, Denmark
| | - Søren Gregersen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Tage-Hansens Gade 2, Aarhus C, Denmark
| | - Per Bendix Jeppesen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Tage-Hansens Gade 2, Aarhus C, Denmark
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Rebello CJ, Greenway FL, Finley JW. Whole grains and pulses: a comparison of the nutritional and health benefits. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:7029-7049. [PMID: 24992700 DOI: 10.1021/jf500932z] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nutrition plays an important role in the prevention and management of disease. Whole grain cereals contain a host of nutrients and bioactive substances that have health-promoting effects. Epidemiological evidence shows a consistent inverse association between whole grain intake and the risk of chronic disease. Despite a concerted effort by scientists, educators, and policy makers to promote the consumption of whole grains, it remains dismally short of the recommended intakes. Pulses (dried beans and peas) differ from whole grains in their structural and physicochemical properties and have varying amounts of fiber, resistant starch, vitamins, minerals, and other bioactive components; nevertheless, these food groups complement each other. Observational as well as intervention trials show that pulse consumption has beneficial effects on the prevention and management of chronic disease. The nutritional and phytochemical components of pulses coupled with those of whole grains suggest a potential synergistic effect that could provide significant health benefits.
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Affiliation(s)
- Candida J Rebello
- School of Nutrition and Food Sciences, Louisiana State University , Baton Rouge, Louisiana 70803, United States
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