Originally Posted by sammy64
Sorry you've been dealing with clueless doctors.
Per thyroid textbooks, healthy people have FreeT4 levels near the high end of the range and FreeT3 levels above mid-range.
I have been trying to find a discussion or information supporting this concept. It does make sense to me for people being treated with T4 only, because they have to push the FT4 up above the mid-point in order to get the FT3 up to just mid-range. But when people are using T4 plus T3, has someone done a survey of some sort to show that the same concept applies? that's what I am wondering about.
thanks for any comments...