#450: Megan Rossi, PhD, RD – Diet For a Healthy Gut: Diversity, Fiber Types & Gut Health Pseudoscience

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Table of Contents

  1. Introduction
  2. Guest Information
  3. Overview
  4. Related Resources
  5. Detailed Study Notes (Premium Subscribers Only)
  6. Transcript (Premium Subscribers Only)


With the advances in understanding the importance of the gut (including its bacterial contents) for human health, much interest and attention has been placed on how to eat to promote positive ‘gut health’. This has led to many exciting research questions and labs doing fascinating work.

However, on the opposite side, it has led to a spike in opportunistic quacks to jump on the wave of enthusiasm and promote diets, supplements, testing kits and products that don’t reflect the current evidence base.

So what do we actually know? What aspects of diet should we focus on to improve gut health? For those with gut symptoms (bloating, pain, irritable bowel, etc.) is it possible to include more vegetables and fiber without the pain?

In this episode, gut health researcher at King’s College London, Dr. Megan Rossi, discusses some simple heuristics to follow that will likely improve overall health, and promote positive gut health.

Guest Information

Megan Rossi, PhD, RD

Dr. Megan Rossi is a Registered Dietitian and Nutritionist with a PhD in gut health from the University of Queensland, Australia. Megan leads research at King’s College London investigating nutrition-based therapies in gut health, including pre- & probiotics, dietary fibres, the low FODMAP diet and food additives.

Dr. Rossi is also an Honorary Lecturer at the University of Queensland Megan also leads The Gut Health Clinic, works in public communciation of science, and is the author of best-selling books.


  1. Diversity of Plants in the Diet
  2. Dietary Fiber & Sub-types
  3. Plant-based Diet Index (PDI)
  4. Fermented Foods

Detailed Study Notes

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