Research
Macro partitioning
Higher dietary fiber intake is positively associated with whole-body insulin sensitivity (Matsuda-IS) independent of cardiorespiratory fitness and waist circumference.
Increase your intake of dietary fiber, particularly from whole-grain bread and vegetables. This improves insulin sensitivity regardless of your current fitness level or waist size. Aim for higher fiber consumption as a standalone strategy to support metabolic health.
GoodSupportsHIGH confidence
Intakes of dietary fibre and whole-grain bread were positively associated with insulin sensitivity, independent of physical fitness and WC.
Why this rating
Large population-based study with objective measures, adjusting for key confounders.
Source
Diet, insulin secretion and insulin sensitivity – the Dose–Responses to Exercise Training (DR's EXTRA) Study (ISRCTN45977199)
Harri M. Heikkilä et al. · British Journal Of Nutrition · 2014
DOI 10.1017/s0007114514002426
cross_sectional · n=1114Cited 12×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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