98% of Women on Thyroid Medication Aren't on the Right One

12 May 2026 · 62 min
1:01:55

In this in‑depth YouTube interview, host Natalie Jill talks with Dr. Amy Hornaman, a leading functional‑medicine thyroid specialist, about why the standard TSH‑only test misses most thyroid dysfunction in women and why 98% of patients on thyroid medication are not optimally treated. They explain the full thyroid panel (free T4, free T3, reverse T3, TPO and TG antibodies) and how each marker informs diagnosis and treatment. The conversation covers the limitations of T4‑only drugs (levothyroxine, Synthroid, Levoxyl, Tirosint), the benefits of adding T3 (liothyronine) or using natural desiccated thyroid (NDT) and compounded formulas, and the emerging role of the lesser‑known hormone T2. Dr. Hornaman introduces “Thyropause,” a decline in thyroid function that often coincides with perimenopause/menopause, and discusses how shifting sex hormones (progesterone, estrogen, testosterone) and autoimmunity (Hashimoto’s) interact with thyroid health. They review dietary triggers (gluten, dairy), adjunctive anti‑inflammatory agents (black cumin seed oil, low‑dose naltrexone, thymosin α), iodine supplementation protocols, and the controversy surrounding FDA regulation of NDT. The interview also tackles the impact of GLP‑1 agonists on metabolism and thyroid function, micro‑dosing strategies, patient sensitivity to T3, and practical lab‑range guidance for hormones. Finally, they promote Dr. Hornaman’s book The Thyroid Fix, a live deep‑dive class, and resources for listeners to obtain labs and personalized care.

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