where does T3 come from is it synthetic - Thyroid UK
where does T3 come from is it synthetic
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wispa13
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shawsAdministrator
Yes, liothyronine (T3) is synthetic but is the Active hormone we need in all our receptor cells for our body to function. It doesn't need to be converted (like T4) it goes directly into your blood stream very quickly and into your receptor cells within a few hours. The effect of this then lasts between 1 and 3 days.
An excerpt from Dr Lowe:-
Based on these considerations, I can only recommend one thing: that you consult a doctor who ignores serum and urine T3 and T4 levels during treatment, and who bases his dosage decisions on his patients’ tissue responses to thyroid hormone.
Many thanks for your prompt answer
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