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What exactly is the gut microbiome?

June 24, 2025 · 12 min

Show notes

What’s really going on inside your gut, and why should you care? In this episode, host Cristina Quinn explores the inner workings of the gut microbiome with Trisha Pasricha, a gastroenterologist and instructor at Harvard Medical School. Together, they break down what the microbiome is, where it lives, and how it influences everything from digestion to disease.

Pasricha explains how the gut microbiome acts as a key player in our overall health and why fiber may be one of the most underrated tools in supporting it. She also offers insight into what science currently understands about gut function and what’s still being uncovered.

Read more of Pasricha’s work, including 8 tips to improve gut health and why probiotics can be a waste of money. For more advice, follow her on Instagram.

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