I think this is a really great product. Here is what I noticed when I started taking it. I don't have the so call night-time bathroom urges as men supposedly have(ar age 48), but I do have to "go" when I wake up in the morning to the point where it forces me to get up at about 5 or 6 am. I do drink al lot of water during the day however. After 3 weeks of red maca, the morning "urge" seems to no longer be there as it once was. I don't know how that relates to the prostate, but I am assuming there is some bebefit derived because of this product. Once again, I have no real physical problems relating to the prostate at age 48, but if the product has the function of nouriing the endoctrine system in the body that regulates hormonal functions and that in turn has been proven to shrink the prostate (at least in mice from the studies I read), then it seems to had that effect on me, since I didn't haven't those morning bathroom urges when I was younger. I am really into healthy eating, maca, acai, goji berries, flax, and many others, and I gan tell an effective product. I first took yellow maca about 3 years ago and distinctinctly remember the increased energe effects. I literally wa up at 5 am on the treadmill. I can always feel the body "shift" when I use a good product as happened with this one. So, men may want to montor themselves ans see if they have a similar expierence. I have always felt that degenerative health issues that plague modern society are nothing more that nutrient deficiencies.