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You notice that I didn’t include blood tests for your TSH, free T4, and free T3 levels. These tests are of limited value. They are meaningful only when they are way out of range. If they are in-range or close to in-range, they are useless in telling you whether you have enough thyroid hormone regulation. The only thing they tell us is the effect of the pituitary’s TSH on the thyroid gland, and the effect of the thyroid gland’s hormones on the pituitary. They tell us nothing whatever about the effects of thyroid hormone on the cells of any other body tissues. To infer from the levels of these hormones the thyroid or metabolic status of other tissues is not only indirect—it’s a wild and scientifically-unsound inference.
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http://www.drlowe.com/QandA/askdrlowe/dxthyrd.htm
So this is great. First we have the supremely intelligent doctors using a thyroid test for several years (or decades?) with a reliable range of tests result for what it "normal."
Then we get the doctors conceding they made a huge mistake on what is the real healthy range. "Normal" is revised dramatically.
And now at least one doctor is saying the conventional testing and/or its interpretation is bogus.
Who wants to be a doctor?
