Document Detail


Oat beta-glucan supplementation does not enhance the effectiveness of an energy-restricted diet in overweight women.
MedLine Citation:
PMID:  19930764     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Epidemiological evidence shows an inverse relationship between dietary fibre intake and body weight gain. Oat beta-glucan, a soluble fibre alters appetite hormones and subjective satiety in acute meal test studies, but its effects have not been demonstrated with chronic consumption. The present study aimed to test the effects in women of two different doses of oat beta-glucan on weight loss and hormones associated with appetite regulation. In a 3-month parallel trial, sixty-six overweight females were randomised into one of three 2 MJ energy-deficit diets: a control and two interventions including 5-6 g or 8-9 g beta-glucan. Anthropometric and metabolic variables (blood glucose level, insulin, total cholesterol (TC), LDL, HDL, TAG and leptin), together with markers of appetite regulation (cholecystokinin (CCK), glucagon-like peptide-1 (GLP-1), ghrelin, peptide YY (PYY) and PYY3-36) were measured at baseline and at 3 months. After 3 months, all groups lost weight (P < 0.001) and showed a reduced waist circumference (P < 0.001). The study sample also showed reductions in TC, LDL, HDL, leptin, PYY, GLP-1 values (all P < 0.001) and an increase in CCK levels (P < 0.001). No significant differences were noted between the groups for all outcome values except PYY levels (P = 0.018). In broad terms, the addition of oat beta-glucan did not enhance the effect of energy restriction on weight loss in mildly overweight women, although wide variations in observed results suggests that individual responsiveness may be an issue.
Authors:
Eleanor J Beck; Linda C Tapsell; Marijka J Batterham; Susan M Tosh; Xu-Feng Huang
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2009-11-24
Journal Detail:
Title:  The British journal of nutrition     Volume:  103     ISSN:  1475-2662     ISO Abbreviation:  Br. J. Nutr.     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-04-13     Completed Date:  2010-04-30     Revised Date:  2010-07-14    
Medline Journal Info:
Nlm Unique ID:  0372547     Medline TA:  Br J Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  1212-22     Citation Subset:  IM    
Affiliation:
School of Health Sciences, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia. eleanor@uow.edu.au
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MeSH Terms
Descriptor/Qualifier:
Adult
Appetite*
Avena sativa*
Blood Glucose / metabolism
Body Mass Index
Cholesterol / blood
Diet, Reducing*
Dietary Fiber
Dietary Supplements*
Dose-Response Relationship, Drug
Female
Ghrelin / blood
Hormones / blood*
Humans
Insulin / blood
Lipoproteins / blood
Overweight*
Peptide YY / blood
Satiation
Weight Gain
beta-Glucans / pharmacology*
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Ghrelin; 0/Hormones; 0/Lipoproteins; 0/beta-Glucans; 106388-42-5/Peptide YY; 11061-68-0/Insulin; 57-88-5/Cholesterol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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