I really like Life Extension Foundation overall and their articles are always packed with studies. Furthermore, a lot of their research seems to be truly cutting edge. However, the one thing that I find questionable is the recommendation of certain supplements, especially without at least mentioning the downside.
Here are a few examples:
1. Saw Palmetto is not good for every man nor necessary and is associated at times with erectile side effects. It limits DHT which is a powerful libido-boosting hormone for men. Imo you don't want to mess with this unless you have to due to BPH, etc.
2. Chrysin, at least in times past, was recommended by LEF in many of their forumulas as a "natural" way to limit estrogen. Well, it may work for some, but it also can slow down thyroid function and one can't help but wonder what else it is affecting. Is this really any more safe than Arimidex, for example, which will also significantly boost testosterone in many men?
3. DHEA. This may help some men but study results have been lackluster and questionable.
There are other examples on this page, but you get the idea. So, while it is true that it is a good article with a lot of good information, you have to realize that for the complete picture you're going to have to go elsewhere...