Testosterone (Total) in Serum

Primary male sex hormone produced mainly in the testes (men) and ovaries/adrenals (women). Regulates muscle mass, bone density, fat distribution, libido, and erythropoiesis.
Also known as:
Testosterone
S-TST
TST
.

Testosterone (Total) ranges for

Interpret your result
"Normal" lab range for Testosterone (Total) is between 264 and 916 ng/dL for males:
264
916
According to American Urological Association, Testosterone (Total) should be above 300 ng/dL for males:
300
According to Peter Attia, Testosterone (Total) should be between 350 and 1000 ng/dL for males:
350
1000
According to OptimalDX, Testosterone (Total) should be between 700 and 1100 ng/dL for males:
700
1100
Increased all-cause mortality was associated with Testosterone (Total) below 213 ng/dL in males:
213
Optimal range
Optimal range for Testosterone (Total) appears to be between 500 and 1100 ng/dL for males:
0
300
500
1100
1300
Why this optimal range?
Preliminary range is based on functional health organizations including but not limited to those listed above.
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Images:

Testosterone declines with age in men

Testosterone declines with age in men

BMI > 22.5 is associated with lower Testosterone in men

BMI > 22.5 is associated with lower Testosterone in men

12,330 participants
Very low testosterone increase all-cause mortality in men

Very low testosterone increase all-cause mortality in men

Fully adjusted model. Using precise mass spectrometry assays.
134,346 participants

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Zsolt Szabo
Zsolt Szabo
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I am particularly interested in research on biomarkers associated with all-cause mortality and on defining optimal reference ranges.