About this episode
Our bodies are comprised of about ten trillion cells. But only half those cells are human. The remainder comprise our microbiome—a vast and complex ecosystem of bacteria, viruses, and fungi that live in or on our bodies. Only now is science beginning to understand the profound impact of these microbes on human health. We choose to believe that we are fully sentient and self-governing, wholly responsible for our health, moods and decisions. But the truth is far different. In fact, to a large extent, our emotional state, propensity for disease, the nature of our cravings, and even some of our decision making can be traced back to the nature of our gut ecology. Most of these microorganisms are symbiotic. Maintaining a healthy culture of the right microorganisms is fundamental to good health. But should the quality of your microbiome go awry, health havoc ensues. To better understand the vital role these microorganisms play in our health and lives, today’s show is a veritable microbiome masterclass courtesy of the gastroenterologists, scientific researchers, and gut experts that have graced the show over the years. After 8+ years and 500+ conversations, I’ve compiled a vast library of bankable, timeless information and advice. As a steward of this archive, I feel a responsibility to convert the best of it into a more helpful, productive, accessible, and practical resource. As an initial step toward this goal, I will be periodically offering curated wisdom focused on a specific theme or subject (as opposed to a guest). This episode is an embryonic experiment in doing just that—the first in what will be an evolving series of deep dives, commencing with this microbiome intensive courtesy of the following collection of past podcast gut health expert guests (all hyperlinked to their respective full episodes): Robynne Chutkan, M.D. Ara Katz and Raja Dhir Zach Bush, M.D. Rhonda Patrick, Ph.D. Will Bulsiewicz, M.D. FULL BLOG & SHOW NOTES: bit.ly/richroll575 YouTube: bit.ly/microbiome575 I sincerely hope you find this experiment helpful and instructive. Peace + Plants, Rich
Listen to this episode in English to learn English
Podcast episodes are one of the highest-density ways to absorb English at native pace. Mastering The Microbiome from The Rich Roll Podcast gives you natural dialogue, unscripted speech, and vocabulary that actually appears in real conversations.
In the Clue app, every word in the transcript is tappable. Tap an unknown word, see the translation in your language instantly, and keep listening without breaking flow.
Episodes to Learn English
- Rachel Entrekin Runs On Joy: How She Won The Cocodona 250 Outright By Letting Go Of The Outcome Jun 15, 2026
- Touch Grass: Andrew Yang Returns To Talk Phone Addiction, AI's Cognitive Toll, & The Fight For Your Attention Jun 8, 2026
- ROLL ON: Enhanced Games Jun 4, 2026
- Paul Rosolie Met An Uncontacted Tribe & Is Trying To Protect Them: On Preserving The Amazon To Save All Life On Earth Jun 1, 2026
- How to Stop Sabotaging Your Own Life With Joe Hudson May 25, 2026
- Inside My 72-Hour Psychedelic Iboga Therapy With Julie Piatt May 21, 2026
- Smile, Or You're Doing It Wrong: Andy Glaze On Relentless Positivity, PTSD, & The Healing Power Of Movement May 18, 2026
- What's Going Right: Dr. Paul Conti On Self-Sabotage, Trauma & Why Being Hard On Yourself Is Slowing You Down May 11, 2026
- Pay Now, Love It Later: Why I Work Out at 4 AM & The Mindset That Wins The Long Game May 7, 2026
- David Epstein On Why Constraints Drive Creativity, The Myth Of Productive Freedom, & How Limits Make Us Better May 4, 2026
- What We're Still Getting Wrong About Women's Health & Fitness: Dr. Stacy Sims Live Apr 27, 2026
- ROLL ON: Stop Optimizing Your Life & Start Living It, Seeking Depth Over Algorithms, The Future of Podcasting, Artemis II, Media Diet & More Apr 23, 2026
- In Waves & War: Marcus & Amber Capone On Psychedelic Treatment For Veteran PTSD, Rebuilding Life After War & The Mission To Heal A Generation Apr 20, 2026
- Everything Is A Story: Journalist Nick Bilton Thinks AI Might End Humanity & How Stories Could Save Us Apr 13, 2026
- Rebuilding My Body & Starting Over After Spinal Fusion Surgery Apr 9, 2026
- The King of Moab: Ultrarunner Max Jolliffe On Winning Moab 240, Recovery From Heroin Addiction & Why Suffering Is His Greatest Teacher Apr 6, 2026
- Rich Speaks On Tiger Woods, Addiction & The Wounds That Fame Can't Heal Apr 2, 2026
- Arthur Brooks On The Crisis Of Meaning & How To Actually Find It Mar 30, 2026
- Decoding the New U.S. Dietary Guidelines with Simon Hill: What They Got Right, Wrong & Why It Matters Mar 26, 2026
- Future-Proof Your Brain from Dementia & The Lifestyle Levers That Keep You Sharp with Neuroscientist Dr. Tommy Wood Mar 23, 2026
- Stanford Professors Bill Burnett & Dave Evans On How To Design A Meaningful Life Mar 16, 2026
- Sobriety, Relapse & Redemption: Rich Speaks On Shia Labeouf & What True Accountability Looks Like Mar 12, 2026
- Ken Rideout On Why Everything You Want Is On The Other Side Of Hard Mar 9, 2026
- The Handyman of High Art: Tom Sachs On Why Creativity Is The Enemy, Why Talent Is Overrated, & The Disciplines That Define A Life Mar 2, 2026
- Decoding Looksmaxxing: The Crisis Consuming Young Men & The Real Path To Self-Worth Feb 26, 2026
- Walk With Weight: Michael Easter On The Evolutionary Case For Rucking, Building Real Resilience & How To Stay Adventure-Ready For Life Feb 23, 2026
- From Death To Life: Dr. Dawn Mussallem On Surviving Cancer Twice, Running A Marathon Post Heart Transplant, & Why Mindset Matters More Than Medicine Feb 16, 2026
- AMA: Alex Pretti, Alex Honnold, Peter Attia, & Finding Hope In Dark Times Feb 12, 2026
- RRP LIVE: Alex Honnold On Climbing the Taipei 101 Skyscraper Feb 9, 2026
- The New Science Of Breath: James Nestor On Why Most People Are Breathing Wrong Feb 2, 2026