Testosterone Levels

[Trojan Horse]

Does anybody know what parameters of testosterone level is normal as indicated in a blood test etc...?

 

[Trojan Horse]

Macro, Ulter? You guys are the gurus here. Chime in if you can.

 

[Trojan Horse]

^^^

 

[lanky]

somewhere between 350-1000 ng/dl, different labs and different text's have varried ranges most people fall within normal range 450-900ng/dl,,i think median is in the 500-600 range..my last test was at 709 ng/dl,,have been as high as 850 years ago when i was in my late teens..if you were to get tested on three seperate occations during the same day or same week your levels can fluctuate or increase by 200ng/dl or more. testosterone is released in pulses. time of day and other nutritional and stress factors play a role(other factors as well).

 

[J. Adams]

somewhere between 350-1000 ng/dl, different labs and different text's have varried ranges most people fall within normal range 450-900ng/dl,,i think median is in the 500-600 range..my last test was at 709 ng/dl,,have been as high as 850 years ago when i was in my late teens..if you were to get tested on three seperate occations during the same day or same week your levels can fluctuate or increase by 200ng/dl or more. testosterone is released in pulses. time of day and other nutritional and stress factors play a role(other factors as well).

The range is actually 300-1100 ng/dl for total testosterone

But there is a distinction between testosterone, and FREE testosterone levels(Which are far more imprtant)

They are two different blood tests.

Anyways, anything less than 300 ng/dl is considered low. (For total testosterone) and you're in effect hypogonadic.

The free testosterone test IMO is far more important then the total testosterone test.

 

[lanky]

The range is actually 300-1100 ng/dl for total testosterone

But there is a distinction between testosterone, and FREE testosterone levels(Which are far more imprtant)

They are two different blood tests.

Anyways, anything less than 300 ng/dl is considered low. (For total testosterone) and you're in effect hypogonadic.

The free testosterone test IMO is far more important then the total testosterone test.

good points

 

[JetCityDude]

LabCorp uses the range of 241 to 827 ng/dL.

A book from Life Extension Institute recommends 600-900 as a target.

My endocrinologist said at 291, I was normal and that if I was at 150, then she would treat me for hypogonadism.

From the reseach I have done hypogonadism is defined at 300 or 250 or 200, depending on the medical journal.

Most "real" anti-aging docs may treat you around 100-500 and will be using targets similar to the ones below.

Here is a chart of T verus age.

age total t (ng/dL) free t (ng/dL)
25-34 617 12.3
35-44 668 10.3
45-54 606 9.1
55-64 562 8.3
65-74 524 6.9
75-84 471 6
85-100 376 5.4

- Source for charts: http://www.weymouthclinic.co.uk/wellman/paper2.html