Ten overweight people who consumed 40 grams of resistant starch fibre per day experienced a 54 per cent increase in their hepatic insulin sensitivity, a 24 per cent increase in their muscle insulin sensitivity, and a 68 per cent increase in their glucose uptake into forearm muscle.
The eight-week study, which used National Starch’s Hi-maize resistant starch, was funded by British charity Diabetes UK.
“These improvements are actually bigger than you get with most blood glucose lowering drugs,” said lead researcher Dr Denise Robertson.
“We are finding that subjects at increased risk of developing type 2 diabetes, such as those with metabolic syndrome, are more responsive to the insulin sensitising effects of resistant starch than people with normal blood glucose levels.
“The complete results of the study will be published as soon as the data from all the participants can be analysed,” added Dr Robertson.
Researchers from the University of Surrey (UK) reported their findings in March at the Diabetes UK Annual Professional Conference, with the conference proceedings published in Diabetic Medicine.
Source: Diabetic Medicine
Volume 26, Issue 1 (Sup l): 14
“Dietary resistant starch is an insulin sensitizer”
Authors: M.D. Robertson, J.W. Wright, J. Batt, D. Russell-Jones, and A.M. Umpleby