Determining the normal testosterone levels for your age, and reaching an optimal zone, can greatly increase your odds of successful treatment.
When testosterone levels are maximized; it enables the energy, strength, and motivation needed to live your life to the fullest.
But if they aren't managed properly, or your low testosterone symptoms remain after treatment, it can lead to an alternatively frustrating experience (as I'm sure many of you can attest to).
Although the research on appropriate testosterone levels has generally been scant up until this point, I was able to find a couple good studys indicating average ranges in the male population at large.
The following free and total blood testosterone tables indicate the downwards trend as men age.
| Vermeulen, A. (1996). Declining Androgens with Age: An Overview. In Vermeulen, A. & Oddens, & B. J. (Eds.), Androgens and the Aging Male (pp. 3-14). New York: Parthenon Publishing. |
| Measurements in SI Units (nmol/L) |
| Age | Number of Subjects |
Total Test |
Stand. Dev. |
Free Test |
Stand. Dev. |
SHBG | Stand. Dev. |
|---|---|---|---|---|---|---|---|
25-34 |
45 |
21.38 |
5.90 |
0.428 |
0.098 |
35.5 |
8.8 |
35-44 |
22 |
23.14 |
7.36 |
0.356 |
0.043 |
40.1 |
7.9 |
45-54 |
23 |
21.02 |
7.37 |
0.314 |
0.075 |
44.6 |
8.2 |
55-64 |
43 |
19.49 |
6.75 |
0.288 |
0.073 |
45.5 |
8.8 |
65-74 |
47 |
18.15 |
6.83 |
0.239 |
0.078 |
48.7 |
14.2 |
75-84 |
48 |
16.32 |
5.85 |
0.207 |
0.081 |
51.0 |
22.7 |
85-100 |
21 |
13.05 |
4.63 |
0.186 |
0.080 |
65.9 |
22.8 |
| Measurements in Conventional Units (ng/dl), SHBG in (nmol/L) |
| Age | Number of Subjects |
Total Test |
Stand. Dev. |
Free Test |
Stand. Dev. |
SHBG | Stand. Dev. |
|---|---|---|---|---|---|---|---|
25-34 |
45 |
617 |
170 |
12.3 |
2.8 |
35.5 |
8.8 |
35-44 |
22 |
668 |
212 |
10.3 |
1.2 |
40.1 |
7.9 |
45-54 |
23 |
606 |
213 |
9.1 |
2.2 |
44.6 |
8.2 |
55-64 |
43 |
562 |
195 |
8.3 |
2.1 |
45.5 |
8.8 |
65-74 |
47 |
524 |
197 |
6.9 |
2.3 |
48.7 |
14.2 |
75-84 |
48 |
471 |
169 |
6.0 |
2.3 |
51.0 |
22.7 |
85-100 |
21 |
376 |
134 |
5.4 |
2.3 |
65.9 |
22.8 |
| Simon, D., Nahoul, K., & Charles M.A. (1996). Sex Hormones, Aging, Ethnicity and Insulin Sensivity in Men: An Overview of the TELECOM Study. In Vermeulen, A. & Oddens, and B. J. (Eds.), Androgens and the Aging Male (pp. 85-102). New York: Parthenon Publishing. |
| Measurements in SI Units (nmol/L) |
| Age | Number of Subjects |
Mean Total Test |
Stand. Dev. |
Median Total Test |
5th % | 10th % | 95th % |
|---|---|---|---|---|---|---|---|
<25 |
125 |
23.97 |
5.48 |
24.15 |
14.15 |
16.22 |
33.12 |
25-29 |
354 |
23.18 |
7.14 |
22.08 |
13.46 |
15.18 |
34.84 |
30-34 |
330 |
21.53 |
6.72 |
20.70 |
12.07 |
13.46 |
33.81 |
35-39 |
212 |
20.70 |
6.55 |
19.66 |
11.39 |
13.46 |
32.77 |
40-44 |
148 |
20.70 |
6.87 |
20.70 |
11.04 |
13.11 |
32.43 |
45-49 |
154 |
18.91 |
5.66 |
18.28 |
11.39 |
12.42 |
29.32 |
50-54 |
164 |
18.87 |
6.49 |
17.94 |
10.01 |
12.07 |
32.43 |
55-59 |
155 |
19.14 |
6.04 |
18.97 |
11.04 |
11.73 |
30.01 |
| Measurements in Conventional Units (ng/dl) |
| Age | Number of Subjects |
Mean Total Test |
Stand. Dev. |
Median Total Test |
5th % | 10th % | 95th % |
|---|---|---|---|---|---|---|---|
<25 |
125 |
692 |
158 |
697 |
408 |
468 |
956 |
25-29 |
354 |
669 |
206 |
637 |
388 |
438 |
1005 |
30-34 |
330 |
621 |
194 |
597 |
348 |
388 |
975 |
35-39 |
212 |
597 |
189 |
567 |
329 |
388 |
945 |
40-44 |
148 |
597 |
198 |
597 |
319 |
378 |
936 |
45-49 |
154 |
546 |
163 |
527 |
329 |
358 |
846 |
50-54 |
164 |
544 |
187 |
518 |
289 |
348 |
936 |
55-59 |
155 |
552 |
174 |
547 |
319 |
338 |
866 |
Depending on the lab your doctor uses, male testosterone levels typically range between 250ng/dl and 850 ng/dl.
As you may well imagine, these ranges are not set to optimal levels. They are a cross section of men aged 20 to 100; many sick and diseased, from a lifetime of unhealthy habits.
So when your blood work arrives and your doctor refuses treatment due to your "normal" testosterone levels, when it's actually somewhere closer to the bottom of the range, then a gentle reminder of optimal health may be in order.
If you kindly point out you have the T levels of a sick 90 year old, maybe he/she will come around.
If your doctor is stubborn, or doesn't like their patients being active participants in their own healthcare... you may be better off emphasizing your symptoms that are more specific to low testosterone.
Noting a loss of sex drive, development of impotence, or reduced muscle mass and strength should give any knowledgeable doctor a red flag that T levels aren't on par.
Depression, fatigue, and loss of motivation are also commonly caused by low testosterone. Unfortunately many doctors would rather prescribe an antidepressant than bring back to normal a natural substance your body already makes.
If all else fails, play the desperation card. Maybe tell him your you're at the cusp of getting fired due to poor work performance.
Or alternatively, your wife/girlfriend has shown concern over your sex drive/impotence problems or recent lack of ambition.
Most doctors with a soul will come around once you explain the seriousness of your case. And if they don't? Shop around.
Check my resources section at the top of the page to find a highly rated doctor, specializing in hormone replacement therapy in your area.
Good Luck!
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