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Feel Better, Live More · September 8, 2026 · 2h 1m

The 4 Food Types That Repair Your Gut Barrier: A Gastroenterologist's Guide To Beating Inflammation For Good with Dr Will Bulsiewicz #677

Will Bulsiewicz

Dr Will Bulsiewicz discusses the four key food groups—fibre, resistant starch, polyphenols, healthy fats, and fermented foods—that support gut barrier repair and lower inflammation. He explains how fibre fermentation produces the anti-inflammatory short-chain fatty acid butyrate, why resistant starch feeds distinct parts of the microbiome, and the science behind the '30 plants a week' target. The conversation also covers how relationships shape our gut microbiomes, the myths around 'leaky gut,' and why he now sees Crohn’s and colitis as immune reactions against the microbiome. Will shares personal struggles where food became a coping mechanism, underscoring that lasting health often requires more than diet alone.

This summary was generated from show notes and public descriptions, not from a full transcript review. Details may contain inaccuracies.

Preview

Fibre and Butyrate: The Anti-Inflammatory Powerhouse
Will describes butyrate, a short-chain fatty acid produced when gut bacteria ferment fibre, as the most anti-inflammatory substance he has encountered.
Will advocates for eating 30 different plant foods per week to boost gut microbiome diversity, but stresses that the exact number is less important than the principle of dietary variety.

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