T3-Predominant Graves’ Disease: Why T3 Can Stay High While T4 Drops

In this episode, Dr. Eric Osansky explores T3-predominant Graves’ disease, a less common form of Graves’ disease in which T3 levels are disproportionately elevated compared to T4. While most people with Graves’ disease have elevated levels of both thyroid hormones, some experience persistently high T3 with normal or even low T4. Dr. Eric explains how the thyroid normally produces and converts these hormones, why increased TSH receptor stimulation may contribute to this unusual pattern, and ho...