Episode
94: Beyond TSH: Root-Cause Labs for Hashimoto’s – The Mitochondria Connection With Dr. Sam Shay
- Published
- Apr 3, 2026
- Duration seconds
- 3844
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- https://traffic.megaphone.fm/LDCBT9721337756.mp3
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Summary
In this episode of Thyroid Pharmacist Healing Conversations, Dr. Izabella Wentz interviews functional medicine expert Dr. Sam Shay about the critical lab tests that go beyond TSH for people with Hashimoto’s and hypothyroidism. Dr. Sam shares a pivotal patient story that highlights why “normal” thyroid labs can still leave people suffering – and how a broader, root-cause approach can uncover what’s really driving symptoms. Together, they discuss thyroid panels, gut permeability and gluten triggers, stress hormones and adrenal patterns, estrogen dominance, nutrient deficiencies, genetics, and the often-overlooked role of mitochondria in fatigue, brain fog, and thyroid-like symptoms. What you’ll learn in this episode: Why a “normal” TSH can be misleading – and what a full thyroid panel reveals. Dr. Sam explains how people can have significant thyroid symptoms and autoimmunity even when their TSH is in a “normal” range. He outlines the additional labs that provide a more complete picture of thyroid function, hormone conversion, and immune activity so care is not based on a single number. How gut permeability and gluten can trigger thyroid antibodies (and why it’s a “two-for-one” problem). Intestinal permeability (“leaky gut”) can allow food particles or microbial byproducts into the bloodstream, prompting antibodies that may cross-react with thyroid tissue. Gluten is a key factor because it can both increase gut permeability and contribute to immune cross-reactivity. Why chronic stress can suppress thyroid function: Dr. Sam breaks down how HPA axis dysfunction shifts the body into a survival state, which can reduce thyroid activity and slow long-term healing. He also explains how ongoing stress can worsen gut health, creating interconnected challenges. The role of mitochon…