It's a big money making biz!
Healthy? No. But who cares, feel fantastic and look fantastic on!
Here is where there is no evidence. They say low test causes health problems,,, there is no evidence of this other than making you tired and in a slightly depressed mood.
I believe being fat and out of shape causes low test. Measure test of fat sedentary people and they have low test. Then the statisticians claim " low test is associated with poor health". There is no evidence it causes it!