A Dialogue with Utiger: T3-based thyroid therapy over-suppresses TSH

Robert Utiger, M.D. (1931-2008) is well known in endocrinology as the father of the TSH test. Despite his trust in the TSH test, in his publications he acknowledged that TSH behaved very unnaturally in response to T3 levels in blood while dosing T3 thyroid medication. What Utiger discovered in the 1970s and 1980s about the …

Continue reading A Dialogue with Utiger: T3-based thyroid therapy over-suppresses TSH

Overreliance on TSH is a thyroid therapy policy that fails to detect its own failure

In standard T4 thyroid therapy, TSH normalization is so easy to achieve that it is almost impossible to fail. First, TSH out of range is the judge of an initial DIAGNOSIS. Next, normal TSH becomes the sole TARGET of therapy. Finally, normal TSH becomes the sole JUDGE of therapy success. This is faulty reasoning. There …

Continue reading Overreliance on TSH is a thyroid therapy policy that fails to detect its own failure

Targeting TSH? It’s not as specific or as sensitive as people claim.

Patients and doctors are often told there's an ideal "target" for TSH levels. Some believe that in thyroid therapy, your TSH should be below the upper reference limit, some say it should be below 2.5, and a minority will even say it should be suppressed entirely whether or not you are a thyroid cancer patient. …

Continue reading Targeting TSH? It’s not as specific or as sensitive as people claim.