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Nutr Rev. 2016 Feb;74(2):131-47. doi: 10.1093/nutrit/nuv063. Epub 2016 Jan 2.

Dietary fiber and satiety: the effects of oats on satiety.

Author information

1
C.J. Rebello is with the Louisiana State University, School of Nutrition and Food Sciences, Baton Rouge, Louisiana, USA. C.J. Rebello and F.L. Greenway are with the Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA. C.E. O'Neil is with the Louisiana State University Agricultural Center, School of Nutrition and Food Sciences, Baton Rouge, Louisiana, USA. Frank.Greenway@pbrc.edu.
2
C.J. Rebello is with the Louisiana State University, School of Nutrition and Food Sciences, Baton Rouge, Louisiana, USA. C.J. Rebello and F.L. Greenway are with the Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA. C.E. O'Neil is with the Louisiana State University Agricultural Center, School of Nutrition and Food Sciences, Baton Rouge, Louisiana, USA.

Abstract

This review examines the effect of β-glucan, the viscous soluble fiber in oats, on satiety. A literature search for studies that examined delivery of the fiber in whole foods or as an extract was conducted. Viscosity interferes with the peristaltic mixing process in the small intestine to impede digestion and absorption of nutrients, which precipitates satiety signals. From measurements of the physicochemical and rheological properties of β-glucan, it appears that viscosity plays a key role in modulating satiety. However, the lack of standardized methods to measure viscosity and the inherent nature of appetite make it difficult to pinpoint the reasons for inconsistent results of the effects of oats on satiety. Nevertheless, the majority of the evidence suggests that oat β-glucan has a positive effect on perceptions of satiety.

KEYWORDS:

appetite; dietary fiber; oats; satiety; β-glucan

PMID:
26724486
PMCID:
PMC4757923
DOI:
10.1093/nutrit/nuv063
[Indexed for MEDLINE]
Free PMC Article

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