HormonesPeter Attia on Diagnosing Thyroid Dysfunction Without Getting It Wrong
Thyroid dysfunction is frequently misdiagnosed or over-treated, particularly in older adults, because clinicians apply population-wide reference ranges without age adjustment. In this AMA clip, Peter Attia walks through his patient workup: which two labs he checks routinely, when to expand the panel, and why standard free T3 and free T4 assays are unreliable at the very moments accuracy matters most. He explains why a mildly elevated TSH often resolves on its own, how to handle patients who normalize labs on T4 therapy but still feel unwell, and why medication timing and absorption factors deserve as much attention as dose. He also reviews what testing has revealed about popular thyroid-support supplements and which nutrients actually matter for thyroid function.
