The Simple Nutrient That Could Transform Your Gut Health, Brain Power & Longevity with Dr Emily Leeming #658

The Simple Nutrient That Could Transform Your Gut Health, Brain Power & Longevity with Dr Emily Leeming #658

From Feel Better, Live More with Dr Rangan Chatterjee by Dr Rangan Chatterjee: GP & Author

May 19, 2026 · 1h 32m · Season 9 · Episode 658

About this episode

Dr Rangan Chatterjee discusses the importance of fibre for gut health and overall well-being with dietitian Dr Emily Leeming.

The chances are, you’re one of the 96 percent who aren’t getting enough fibre. And I’m not talking a little bit off the mark. For most of us, our intake is seriously lacking. Why does that matter? Because given everything we now know about what fibre does for our gut, our brain, our metabolism, our mood, our weight and our long-term disease risk, it’s an easy fix that we’re missing. Joining me on the podcast is Dr Emily Leeming, a dietitian and researcher at King's College London, who’s spent years studying the relationship between what we eat and the health of our gut microbiome. Her new book, Fibre Power, makes the case – compellingly and practically – that fibre may be the most underrated nutrient in our diets. As a scientist, a clinician who works directly with patients, and a former chef, her advice is evidence-based yet grounded in what works in a real kitchen, for real people. In this episode we explore what fibre is, where it’s found, and why it’s so much more than a digestive aid. Emily explains how it feeds the trillions of microbes living in your gut, and why those microbes (and the compounds they produce) have a reach that extends to your immune system, your…

People in this episode

Host: Dr Rangan Chatterjee

Guest: Dr Emily Leeming

Topics covered

  • gut health
  • fibre
  • nutrition
  • brain health
  • longevity
  • disease prevention

Keywords

  • fibre
  • gut microbiome
  • nutrition
  • health
  • disease risk
  • metabolism
  • brain power

Mentioned in this episode

Organizations: King's College London

Books & works: Fibre Power

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