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September 10, 2025Clinical NutritionOpen Access

Effects of Isolated Single Fibers, Fiber Mixtures, and Fiber-Rich Whole Foods on Glucose Homeostasis in individuals with Overweight and Obesity: a systematic review and meta-analysis

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Authors

HÇHatice ÇolakGLGillian N F LarikMBMarleen A. van Baak

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Overview

Systematic review and meta-analysis demonstrate dietary fiber's effects on glucose homeostasis in obesity, suggesting varied impacts based on fiber type.

Key Points

  • Dietary fiber supplementation improved fasting glucose by -0.07 mmol/L, enhancing glucose homeostasis in individuals with obesity.
  • Significant reduction in fasting insulin levels by -5.89 pmol/L highlighted the effect on insulin sensitivity from fiber supplementation.
  • RCTs included in the analysis revealed varied response based on dietary fiber form, indicating no single type as superior.
  • Meta-analysis incorporated data from 51 studies with 3420 participants, analyzing effects over study durations of 1 to 12 months.

Cite This Study

Çolak et al. (2025) studied this question.

synapsesocial.com/papers/68c241acb210217d647a0648https://doi.org/10.1016/j.clnu.2025.08.003
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Also Consider

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  4. 4The efficacy of dietary interventions for prediabetes management: An umbrella review of meta-analyses2025
  5. 5Effects of Whey Protein, Carbohydrate, and Fibre Combination on Health Indicators: A Systematic Review2025