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 .
Dietary Fibre Improves First-phase Insulin Secretion in Overweight Individuals
Previous work has shown increased insulin sensitivity , increased hepatic insulin clearance and lower postpr and ial insulin responses following treatment with resistant starch , a type of dietary fibre . The objective of this study was to further explore the effects of resistant starch on insulin secretion . Twelve overweight ( BMI 28.2±0.4 kg/m2 ) individuals participated in this r and omized , subject-blind crossover study . Participants consumed either 40 g type 2 resistant starch or the energy and carbohydrate-matched placebo daily for four weeks . Assessment of the effect on insulin secretion was made at the end of each intervention using an insulin-modified frequently sample d intravenous glucose tolerance test ( FSIVGTT ) . Insulin and C-peptide concentrations were significantly higher during the FSIVGTT following the resistant starch compared with the placebo . Modelling of the data showed significantly improved first-phase insulin secretion  with resistant starch . These effects were observed without any changes to either body weight or habitual food intake . This study showed that just four weeks of resistant starch intake significantly increased the first-phase insulin secretion in individuals at risk of developing type 2 diabetes . Further studies exploring this effect in individuals with type 2 diabetes are required
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 .