
Originally Posted by
samwalt
range for free T 5 - 25 ng/dl
And my available test (free + albumin bound, non shbg bound) is ~200, which is only 1/3 of the ideal of ~ 600 i've seen.
Average for men 30-40 was ~ 12.3 in a study of a couple hundred men. W/ a standard deviation of 2.3, so mine's low.
~ in the bottom 5% or so people my age.
I've been losing a lb or two of muscle every year, and gaining 1-2 of fat like clockwork. Energy's low.
Plus, my TT was higher before at 610, when the Shbg was 73. Most likely, Shbg, the carrier protein, was holding onto my test (pooling it), and as it was released my body didn't replace it quickly.