Show Notes
In this episode, I sit down with Dr. Trisha Pasricha, a Harvard-trained gastroenterologist who directs the Gut-Brain Research Lab at Beth Israel, to reveal why IBS isn't "all in your head" and how specialized antibody testing can uncover autoimmune attacks on gut neurons. We explore the IBS-fibromyalgia overlap, why one in three people develop IBS after infections, and her groundbreaking research showing smartphone scrolling in bathrooms increases hemorrhoid risk by 46%. Dr. Pasricha shares evidence-based treatments including peppermint oil and psyllium fiber while debunking probiotic myths, and explains why constipation may be an early Parkinson's warning sign. This conversation validates patients dismissed by doctors and proves these conditions have real pathology requiring collaborative care across specialties. Key Takeaways IBS is NOT "all in your head"—pathology lives in the deep enteric nervous system where standard tests can't reach 90% of gut-brain communication flows UPWARD through the vagus nerve, not downward from stress One in three people who get gastroenteritis will develop IBS from "scarring" of gut neurons The Mayo Paraneoplastic Panel can detect autoimmune antibodies attacking gut neurons (specialized test) Many IBS patients also have fibromyalgia—treatments often overlap (SNRIs, peppermint oil, fiber) Psyllium fiber (25g women, 38g men daily) works for BOTH constipation and diarrhea—it's a "shapeshifter" Probiotics are NOT recommended by gastroenterology guidelines—feed your microbiome with fiber and fermented foods instead Smartphone scrolling in the bathroom increases hemorrhoid risk by 46%—limit to 5 minutes maximum Constipation may be an early Parkinson's warning sign—the disease likely begins in the gut H. pylori is abnormally prevalent in Parkinson's patients and treating it can improve tremors by enhancing levodopa absorption
Chapters & Timestamps 00:00 Introduction to Dr. Trisha Pasricha & Gut-Brain Research 02:00 What Is IBS & Why It's Not "All in Your Head" 04:00 The Enteric Nervous System: Our "Second Brain" 07:00 The Autoimmune Connection to IBS 10:00 IBS-Fibromyalgia Overlap & Treatment Crossover 13:00 Mayo Paraneoplastic Panel: Testing for Autoimmune IBS 16:00 Getting Second Opinions & Finding Neuro-GI Specialists 19:00 Social Media Education: Benefits & Rabbit Holes 21:00 Evidence-Based Treatments: Peppermint Oil & Psyllium Fiber 26:00 The Truth About Probiotics: Not Recommended 29:00 Fiber Diversity & the Mediterranean Diet Connection 33:00 Groundbreaking Research: Smartphones & Hemorrhoids (46% Risk) 36:00 Parkinson's Disease Begins in the Gut 38:00 The GI-Neuro Parkinson's Clinic Model 42:00 H. Pylori Connection to Parkinson's & Rheumatic Diseases 45:00 Post-Infectious IBS & Reactive Arthritis Parallels 47:00 Dr. Pasricha's Book & Where to Find Her Guest Details Dr. Trisha S. Pasricha, MD Board-Certified Gastroenterologist & Neuro-GI Specialist Credentials & Training: Board Certified in Gastroenterology Harvard Medical School trained Johns Hopkins trained Fellowship in Neuro-Gastroenterology (Gut-Brain Connection & Motility) Director of Gut-Brain Research Lab at Beth Israel Deaconess Medical Center, Boston Medical Columnist, The Washington Post (weekly Monday column)
Research & Publications: Published in New England Journal of Medicine, JAMA, Nature Reviews Leading research on IBS, gut-brain axis, and Parkinson's disease gut origins Groundbreaking studies on smartphone use and GI health Expert in autoimmune causes of GI motility disorders
Specializations: Irritable Bowel Syndrome (IBS) and its autoimmune etiologies Neuro-gastroenterology and enteric nervous system disorders Gut-brain connection and vagus nerve communication Parkinson's disease gastrointestinal manifestations Gastroparesis and GI motility disorders Fibromyalgia-IBS overlap syndrome Post-infectious IBS and reactive gut disorders Joint hypermobility syndromes with GI involvement Interdisciplinary care for complex patients
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