Beneficial effects of dietary wheat and oat fibre are independent of colonic fermentation

Abstract

Background: Low GI diets are known to improve health. In contrast to soluble dietary fibres, insoluble fibres have no acute impact on postprandial glucose and insulin responses. However, in population studies diets rich in insoluble dietary fibre are associated with a reduced risk of diabetes and CHD. Possible mechanisms might be colonic fermentation of insoluble dietary fibre with the production of metabolic active substrates.