Episode
310: Resiliency Radio with Dr. Jill: Getting to The Root Cause of IBS with Dr. Izabella Wentz
- Published
- Apr 15, 2026
- Duration seconds
- 2241
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Summary
In this episode of Resiliency Radio with Dr. Jill, Dr. Jill Carnahan sits down with Dr. Izabella Wentz to uncover the true root causes behind Irritable Bowel Syndrome (IBS) and why it's often more than just a diagnosis. Dr. Wentz, a pharmacist turned functional medicine expert and bestselling author, shares her personal journey with Hashimoto's thyroiditis and IBS—and how it led her to explore the deeper connections between gut health, autoimmunity, infections, and environmental triggers. Together, they break down why IBS is often a symptom cluster rather than a true diagnosis, and how identifying underlying causes like SIBO, parasites, food sensitivities, mold exposure, and thyroid dysfunction can lead to real healing. This episode is essential listening for anyone struggling with digestive issues and looking for a root-cause, functional medicine approach to gut health. 🔑 5 Key Discussions ① 🧠 IBS as a Symptom, Not a Diagnosis ⇨ IBS is a cluster of symptoms—including bloating, constipation, and diarrhea—rather than a true disease. ⇨ Understanding the root cause behind symptoms is key to long-term healing. ② 🦠 Hidden Infections and Gut Imbalances ⇨ Conditions like SIBO, parasites (Giardia, Blastocystis), and fungal overgrowth are common underlying causes of IBS. ⇨ These imbalances can disrupt digestion, nutrient absorption, and immune function. ③ ⚖️ Thyroid and Gut Connection ⇨ Thyroid dysfunction can slow digestion, reduce stomach acid, and contribute to bacterial overgrowth. ⇨ Gut issues can also worsen thyroid autoimmunity through inflammation and nutrient deficiencies. ④ 🍽️ Food Sensitivities and Diet Triggers ⇨ Gluten, dairy, food additives, and artificial sweeteners can trigger IBS symptoms. ⇨ Elimination diets can help identify individual food triggers and sensi…