187. Dr. Izabella Wentz: 30+ Root Causes Behind An IBS Diagnosis episode artwork

EPISODE · Aug 4, 2026 · 59 MIN

187. Dr. Izabella Wentz: 30+ Root Causes Behind An IBS Diagnosis

from Extend Podcast with Darshan Shah, MD

Hashimotos isn't just a thyroid disease-it may actually begin in the gut.  If you've been told your thyroid labs are "normal" but you still struggle with fatigue, bloating, constipation, IBS, or autoimmune symptoms, this episode could change the way you think about your health.  I sit down with Dr. Izabella Wentz, PharmD-better known as the Thyroid Pharmacist and one of the world's leading experts on Hashimoto's disease - to uncover the powerful connection between gut health, autoimmune disease, and thyroid function.  Dr. Wentz explains why IBS is often not a true diagnosis, but a collection of symptoms with more than 30 possible root causes. Together, we explore why conventional medicine frequently misses these underlying issues and how identifying the real drivers - from intestinal permeability and SIBO to food sensitivities, medications, infections, and even heavy metal exposure - can help people finally find lasting relief.  Whether you're living with Hashimoto's, IBS, or another autoimmune condition, this conversation offers a practical roadmap for uncovering the root cause and supporting long-term healing.  In this episode, you'll learn:  Why gut health is critical for thyroid function and autoimmune healing The surprising connection between Hashimoto's disease and IBS Why IBS is a symptom - not a diagnosis The 30+ root causes that may be driving digestive symtpoms How intestinal permeability ("leaky gut") contributes to autoimmune disease The biggest food, medication, and lifestyle triggers for IBS Which functional medicine tests can uncover hidden gut dysfunction How targeted treatment can improve symptoms and support long-term remission If you've been searching for answers beyond symptom management, this episode provides an evidence-based look at the gut-thyroid connection and what it really takes to restore health.  Thank You to Our Sponsors  Next Health Longevity Summit: Head to www.next-health.com/summit to secure your spot at the first ever Next Health Longevity Summit in Nashville on 9/12!  IM8: Try IM8 today with a 30-day money back guarantee. Get 10% off your first order with code DRSHAH at https://im8health.com/drshah Timeline: Timeline powered by Mitopure just dropped the price. Check it out using link shop.timeline.com/DRDARSHANSHAH for up to 20% off when you subscribe and save.  Learn more about Dr. Shah:  Website: drshah.com Instagram: @extend_podcast and @darshanshahmd Clinic: next-health.com Learn more about Dr. Izabella Wentz:  Website: thyroidpharmacist.com Instagram: @izabellawentzpharmd Book: thyroidpharmacist.com/ibs-book-order/

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187. Dr. Izabella Wentz: 30+ Root Causes Behind An IBS Diagnosis

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