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Increases In Peptide Y-Y Levels Following Oat Β-Glucan Ingestion Are Dose-Dependent In Overweight Adults, Eleanor J. Beck, Linda C. Tapsell, Marijka J. Batterham, Susan M. Tosh, Xu-Feng Huang

Xu-Feng Huang

Peptide Y-Y (PYY) is an anorexigenic hormone implicated in appetite control, and β-glucan is a fiber known to affect appetite. We hypothesized that plasma PYY levels would increase in overweight human adults consuming increasing doses of β-glucan. The objective was to test whether the effect could be seen with β-glucan delivered through extruded cereals containing a high β-glucan oat bran with demonstrated high molecular weight and solubility. Fourteen subjects consumed a control meal and 3 cereals of varying β-glucan concentration (between 2.2 and 5.5 g), and blood samples were collected over 4 hours. Analysis of raw PYY data showed a …