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The gut microbiota and cardiovascular health benefits: a focus on wholegrain oats

Kristek, A., Schar, M. Y., Soycan, G., Alsharif, S., Kuhnle, G. G. C., Walton, G. and Spencer, J. P. E. (2018) The gut microbiota and cardiovascular health benefits: a focus on wholegrain oats. Nutrition Bulletin, 43 (4). pp. 358-373. ISSN 1471-9827

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To link to this item DOI: 10.1111/nbu.12354

Abstract/Summary

Existing scientific data suggest that a high intake of wholegrain foods contributes to improved gut health and a reduced risk of cardiovascular disease. Wholegrain oats are rich in dietary fibre and an important source of many bioactive components, including minerals, vitamins and phenolic compounds. The oat β‐glucans have been reported to lower low‐density lipoprotein cholesterol through their ability to increase the viscosity of intestinal chime, change the gut microbiota composition and increase the production of short‐chain fatty acids, which may contribute to the inhibition of hepatic cholesterol synthesis. Oats are also a rich source of phenolic acids, which are predominantly bound to cell wall polysaccharides through ester bonds. This bound state within oats means that phenolic acid bioavailability will largely be determined by interactions with the colonic microbiota in the large intestine. However, results from in vitro, animal and human studies have been inconsistent in relation to the impact of oats on the gut microbiota, possibly due to differences in experimental techniques and because compounds in oats, other than β‐glucans, have not been considered. This review focuses on the interaction of oat β‐glucans and phenolic acids with gut microbiota, and the subsequent link to cardiovascular health.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
ID Code:80682
Publisher:Wiley-Blackwell

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