Conclusions This meta- analysis has provided evidence that RS supplementation can improve fasting glucose , fasting insulin , insulin resistance and sensitivity , especially for diabetic with overweight or obesity .
Background The role of resistant starch ( RS ) in glucose , insulin , insulin resistance or sensitivity , and lipid parameters have been reported in several studies and remained controversial .
A pooled analysis which assessed these parameters has not been performed .
Thus , we conducted a meta- analysis to sum up existing evidence about the issue .
Baseline insulin sensitivity affects response to high-amylose maize resistant starch in women: a randomized, controlled trial
Background Resistant starch ( RS ) is a type of dietary fiber that can improve glucose metabolism , but its effects may be modulated by sex or baseline insulin sensitivity . This study was design ed to examine the effect of high-amylose maize resistant starch ( HAM-RS2 ) on insulin sensitivity ( SI ) in women , and to determine if SI status affects the response to RS . Methods This was a r and omized , placebo-controlled , double-blind , cross-over study . Participants were 40 healthy , non-diabetic women aged 22–67 years in the normal-weight to obese BMI range ( 20.6–47.4 kg/m2 ) . Two doses of HAM-RS2 were tested , 15 and 30 g per day , administered in the form of cookies . Participants were r and omized to the order in which they received the experimental and placebo product . Each arm was 4 weeks , with a 4-week wash-out period in between . SI was assessed at the end of each 4-week arm of product consumption by frequently- sample d , insulin-modified , intravenous glucose tolerance test and minimal modeling . Participants were categorized as being insulin resistant ( IR ; SI < 7.8 ) or insulin sensitive ( IS ; SI ≥ 7.8 ) based on Gaussian analysis . The effect of treatment arm on SI was examined by mixed-model analysis within IR and IS sub-groups , using all available data . In addition , SI was examined by ANOVA among just those women who completed all three arms of the study with valid SI results . Results Among IR participants , SI was on average ~16 % higher after the 30 g arm when compared to the control arm by mixed-model analysis ( n = 40 , P < 0.05 ) , and tended to be 23 % higher by ANOVA among women who completed all arms ( n = 23 , P = 0.06 ) . HAM-RS2 did not affect SI in IS women . Conclusion Consumption of HAM-RS2 at 30 g/day in the form of a snack food item was associated with improved insulin sensitivity in women with insulin resistance . Clinical trials registry numberNCT01521806
Conclusions This meta- analysis has provided evidence that RS supplementation can improve fasting glucose , fasting insulin , insulin resistance and sensitivity , especially for diabetic with overweight or obesity .
Background The role of resistant starch ( RS ) in glucose , insulin , insulin resistance or sensitivity , and lipid parameters have been reported in several studies and remained controversial .
A pooled analysis which assessed these parameters has not been performed .
Thus , we conducted a meta- analysis to sum up existing evidence about the issue .