Age-appropriate normal T numbers

[sparverius]

We all know that the so-called "normal" range of 241-827 or 300-1100 or even 129-767 is useless for diagnostic purposes as T levels naturally decline with age. What's normal for a healthy 75 year old would be low for a 25 year old.

Here's a couple studies that give average and standard deviations for healthy men in age groups.

Normal Testosterone Levels in Men by Age - Free and Total Healthy Male Ranges

[61er]

Interesting data. The drop off with age is smaller than I realized (large sample study).

[kelkel]

I've seen that and to me the most interesting part is the slow elevation in SHBG levels as we age.
Bring on the Vit D.

[2Sox]

What's normal for a healthy 75 year old would be low for a 25 year old.

I'll take the levels of what's "normal" for a twenty five year old any day.