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August 15, 2025Open Access

Distinct modulatory effects of high-fiber and fermented-food diets on gut microbiota, immune function, transit time, and sleep quality in a citizen science randomized controlled trial

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Authors

MBMaartje van den BeltMPMarieke van de PutEYEcem Yüksel

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Overview

Randomized controlled trial reveals unique impacts of high dietary fiber and fermented food diets on gut microbiota and immune function in participants.

Key Points

  • High dietary fiber improved sleep quality and reduced gastrointestinal transit time, enhancing overall gut health.
  • Participants consuming high fermented foods showed significant increases in immune markers, indicating improved immune function.
  • The intervention highlighted distinct biological pathways that dietary fibers and fermented foods use to influence human physiology.
  • This citizen science approach demonstrates the feasibility of engaging participants in healthier dietary choices over an 8-week period.

Cite This Study

Belt et al. (2025) studied this question.

synapsesocial.com/papers/68c235ccb210217d64772447https://doi.org/10.1101/2025.08.05.25332853
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Effects of Dietary Fiber Supplementation on Gut Microbiota and Bowel Function in Healthy Adults: A Randomized Controlled Trial2025 · 11 citations
  2. 2Gut microbiome-mediated health effects of fiber and polyphenol-rich dietary interventions2025
  3. 3The anti-inflammatory effects of three different dietary supplement interventions2025
  4. 4Microbiota-Dependent Fiber Responses: A Proof-of-Concept Study on Short-chain Fatty Acid Production in Prevotella- and Bacteroides-Dominated Healthy Individuals2025
  5. 5The interconnection between dietary fibre, gut microbiome and psychological well-being2025