Dairy proteins, dairy lipids, and postprandial lipemia in persons with abdominal obesity (DairyHealth):a 12-wk, randomized, parallel-controlled, double-blinded, diet intervention study

Autor: Kia V Rasmussen, Lydia A. Afman, Søren Gregersen, Bashar Amer, Mette K Larsen, Jens J. Holst, Kjeld Hermansen, Merete M Christensen, Ann Bjørnshave, Erik Jensen, Trine K Dalsgaard, Sadhbh O’Neill, Annkatrin Herrmann, Lorraine O'Driscoll, Mette Bohl, Anne Grethe Schioldan
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Larsen, M B, Bjørnshave, A, Rasmussen, K V, Schioldan, A G, Amer, B, Larsen, M K, Holst, J J, Herrmann, A, O'Neill, S, O'Driscoll, L, Afman, L, Jensen, E, Christensen, M M, Gregersen, S, Hermansen, K & Dalsgaard, T K 2015, ' Dairy proteins, dairy lipids, and postprandial lipemia in persons with abdominal obesity (DairyHealth) : a 12-wk, randomized, parallel-controlled, double-blinded, diet intervention study ', The American Journal of Clinical Nutrition, vol. 101, no. 4, pp. 870-8 . https://doi.org/10.3945/ajcn.114.097923
American Journal of Clinical Nutrition, 101(4), 870-878
American Journal of Clinical Nutrition 101 (2015) 4
ISSN: 0002-9165
DOI: 10.3945/ajcn.114.097923
Popis: Background: Abdominal obesity and exaggerated postprandial lipemia are independent risk factors for cardiovascular disease (CVD) and mortality, and both are affected by dietary behavior. Objective: We investigated whether dietary supplementation with whey protein and medium-chain saturated fatty acids (MC-SFAs) improved postprandial lipid metabolism in humans with abdominal obesity. Design: We conducted a 12-wk, randomized, double-blinded, diet intervention study. Sixty-three adults were randomly allocated to one of 4 diets in a 2 3 2 factorial design. Participants consumed 60 g milk protein (whey or casein) and 63 g milk fat (with high or low MCSFA content) daily. Before and after the intervention, a high-fat meal test was performed. We measured changes from baseline in fasting and postprandial triacylglycerol, apolipoprotein B-48 (apoB-48; reflecting chylomicrons of intestinal origin), free fatty acids (FFAs), insulin, glucose, glucagon, glucagon-like peptide 1 (GLP-1), and gastric inhibitory polypeptide (GIP). Furthermore, changes in the expression of adipose tissue genes involved in lipid metabolism were investigated. Two-factor ANOVA was used to examine the difference between protein types and fatty acid compositions, as well as any interaction between the two. Results: Fifty-two participants completed the study. We found that the postprandial apoB-48 response decreased significantly after whey compared with casein (P = 0.025) independently of fatty acid composition. Furthermore, supplementation with casein resulted in a significant increase in the postprandial GLP-1 response compared with whey (P = 0.003). We found no difference in postprandial triacylglycerol, FFA, insulin, glucose, glucagon, or GIP related to protein type or MC-SFA content. We observed no interaction between milk protein and milk fat on postprandial lipemia. Conclusion: We found that a whey protein supplement decreased the postprandial chylomicron response compared with casein in persons with abdominal obesity, thereby indicating a beneficial impact on CVD risk.
Databáze: OpenAIRE