Do plant sterols prevent prostate cancer? Not a day goes by without me hearing a "super mega beta prostate" (or some other similar product) commercial. > Super Beta Prostate is a natural prostate supplement made with beta-sitosterol designed to provide you with support for the following: > Healthy Urinary Flow > Healthy Urinary Function > Healthy Prostate Function > While the idea of taking 1000 times the dosage seems unlikely to be beneficial, is there any dosage for which plant sterols have been shown to reduce prostate cancer risk?

From the Linus Pauli Institute: "The results of a few clinical trials suggest that phytosterol supplementation at relatively low doses can improve urinary tract symptoms related to benign prostatic hyperplasia, but further research is needed to confirm these findings."

A search on PubMed will give you 36 results, not all of which may be relevant. It looks like the research is being done on cells in a dish, and on animals.

From this I'd say there may be something to this story, but we're not sure. And I'm guessing it's too early to say what dosage you'd need to take. But I'm not an MD, just a googler.