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The Rich Roll Podcast · January 12, 2026 · 148m
Heal Your Gut, Reduce Inflammation
Will Bulsiewicz on the gut microbiome as the root determinant of chronic inflammation — the silent driver behind 3 out of 5 deaths. Fiber diversity (not just quantity) is the single most important dietary variable for microbiome health.
This summary was generated from show notes and public descriptions, not from a full transcript review. Details may contain inaccuracies.
Canon
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Bulsiewicz: the gut microbiome produces neurotransmitters, regulates immune function, and controls inflammation. Its health depends on fiber diversity — eating 30+ different plant foods per week produces dramatically better outcomes than eating the same 5 on repeat.
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