The thyroid gland releases very small amounts of biologically active thyroid hormone (T3) and larger amounts of an inactive form of thyroid hormone (T4) into the circulation.
Thyroid volume and TSH concentration were higher; free T3 and free T4 concentrations were lower in obese women; however, all were still in the normal range.
take place every time Vitamin B6 is injected or taken orally. In addition, Vitamin B6 will only affect T4 (thyroxine) levels, but no conversion to T3 (triiodothyronine) takes place - causing a T3 / T4 thyroid ratio ...
First if your are taking synthetic thyroxin pills, make sure you are taking a therapeutic dose. When was the last time your blood was tested for T3 and T4 levels?
Though some research has shown changes in T3 and thyroid stimulating hormone (TSH), the real effect appears to be with T4 which is elevated consistently in the studies done using animals-and to a lesser degree people-eating soy proteins.
See also: T3, Thyroid, Fat, Eating, Calorie
 
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