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Oat β-glucan supplementation does not enhance the effectiveness of an energy-restricted diet in overweight women

Journal Article


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Abstract


  • Epidemiological evidence shows an inverse relationship between dietary fibre intake and body weight gain. Oat β-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 β-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 β-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 β-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.

Publication Date


  • 2010

Citation


  • Beck, E. J., Tapsell, L. C., Batterham, M. J., Tosh, S. M. & Huang, X. (2010). Oat β-glucan supplementation does not enhance the effectiveness of an energy-restricted diet in overweight women. The British Journal of Nutrition: an international journal of nutritional science, 103 (8), 1212-1222.

Scopus Eid


  • 2-s2.0-77951627989

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1002&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/3

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 1212

End Page


  • 1222

Volume


  • 103

Issue


  • 8

Place Of Publication


  • United Kingdom

Abstract


  • Epidemiological evidence shows an inverse relationship between dietary fibre intake and body weight gain. Oat β-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 β-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 β-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 β-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.

Publication Date


  • 2010

Citation


  • Beck, E. J., Tapsell, L. C., Batterham, M. J., Tosh, S. M. & Huang, X. (2010). Oat β-glucan supplementation does not enhance the effectiveness of an energy-restricted diet in overweight women. The British Journal of Nutrition: an international journal of nutritional science, 103 (8), 1212-1222.

Scopus Eid


  • 2-s2.0-77951627989

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1002&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/3

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 1212

End Page


  • 1222

Volume


  • 103

Issue


  • 8

Place Of Publication


  • United Kingdom