The concerns you raise are worth discussing here. Thanks, bobowo.
Here at BreastNexus, we focus primarily on using natural (herbal) substances for shifting the balance of T to E in the body. The herb of choice lately has been PM, a source of a plant estrogen called miroestrol which mimics estradiol (E2) in humans. Since the site you referenced raises the issue of high levels of E2 in older males, not miroestrol, I'm not sure any of the information there is relevant to the use of PM. There are studies that show a beneficial effect of taking PM in women with respect to decreased risk of some cancers and blood clots. Does that mean that taking PM to affect breast growth and other feminizing effects is completely safe for men? We don't know. There is a lack of confirming research.
The other alarm raised in the article is the danger of low testosterone levels. Taking PM alone will lower serum T levels well below the healthy male reference range. I personally can attest to that. Herbal anti-androgens also produce this effect. Am I at greater risk of heart disease as a result? It could be. On the other hand, we should distinguish between cause and effect. Most of the studies measured the T levels of heart attack victims and found a correlation to low T. Does that mean that low T caused the heart disease? Other studies have concluded that
high T levels also correlate to higher incidence of heart disease. Seems like a contradiction. I also find the studies confusing in that they don't distinguish between free testosterone and DHT in terms of increased risk to heart attack. Does inhibiting the 5 alpha reductase enzyme that converts free T to DHT produce the greater risk factor?
Lastly, I am more than a little skeptical of websites that sell products and services that benefit from cherry picking research studies that then lead you to buy their stuff. It's not likely to be objective information, so seek confirmation elsewhere.
Does that mean I am not worried about my long term health with regard to my altering the hormonal balance of my body? Certainly not. I have a physical exam annually, and have my blood drawn and analyzed semi-annually. If problems arise, I hope to learn of them early enough to take appropriate action.
I'm interested in other perspectives, as well, and am trying to keep an open mind on the subject. There's a lot we don't know conclusively.
Clara