thyroid hormone architecture

by | Sep 9, 2025

Architecture of three versions of thyroid hormone, including thyroxine or T4 (four iodines,) triiodothyronine or T3 (three iodine molecules) and reverse T3. The iodines molecules differentiating the compounds are in red. | Dr. Orna Izakson | Alaska Naturopathic Doctor | Oregon Naturopathic Physician