So, the myriad of peer-reviewed journals documenting the relationship between zinc deficiency and low serum testosterone are bunk? Hmmm.
I will agree that this is not the case with medical diagnoses of pituitary lesions, testicle lesions, etc.
The link between zinc deficiency and low serum testosterone can not be ignored for a large percentage of men dealing with hypogonadsm, I'm sure.
It is not uncommon for the US diet to be deficient in zinc. Zinc deficency can cause a huge drop in serum testosterone(one study cited a drop of 600 after only 20 weeks of consuming a diet that caused zinc deficiency).
How can this be ignored when individuals have tried everything? I'm not saying that it can be the only cause for low testosterone, but there is evidence of a relationship both via correlation and cause.
I dont think it is as simple as "a medical problem must be treated by medicine". I'm no holistic-minded naturalist, but this is basic science suggesting that zinc supplementation can raise serum testosterone significantly.