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ZOE Science & Nutrition · May 13, 2024 · 45m

How to Restore Your Gut After Antibiotics

Dr. Will Bulsiewicz

Dr. Will Bulsiewicz and Tim Spector explain how antibiotics devastate gut microbiome diversity and what science says about rebuilding it — probiotics, fermented foods, and dietary fiber.

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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The post-antibiotic diet is an environmental intervention — what you eat in the weeks after antibiotics determines which bacteria recolonize your gut
Bulsiewicz argues that the post-antibiotic period is a critical window: the gut ecosystem is devastated and the first organisms to recolonize will dominate. A high-fiber, plant-diverse diet during this window shapes which bacteria establish themselves.
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Highlights

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A single course of antibiotics can reduce gut microbiome diversity by 30% — and some species may never recover
Bulsiewicz presents the data: one round of broad-spectrum antibiotics can eliminate 30% of gut bacterial species. Some species recover within weeks; others may take years or never return without deliberate reintroduction through diet.
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