My urologist saved my gonads when he suggested using red wine, tomato paste, pomegranate juice, and selenium. He didn't give me any indication of how much or how often, except for the selenium, which he was quite sure needed to be "pulsed."
I had to research the diet myself, and tested it on myself as I discovered the magic figures and facts. I also made some surprising discoveries along the way, such as: other ingredients benefit from being taken in pulses as well. Some ingredients if taken at the same time cancel each other out. Some helper foods allowed my body to absorb as much as ten times the amounts of active ingredients from the same sized serving of food. Some foods really needed to be taken with other foods as one supplemented what another prevented me from absorbing. And the fact that it was not a consistent diet, you used certain foods aggressively, then tapered off on them, then went back to aggressive use at the appropriate time.
Being a foodie, it also had to taste pretty much as I'd always been used to, too. So I adapted recipes to suit.
The upshot of it all was that a mere seven (7) months later, I went back for the next PSA tests and my PSA had dropped to a level that a person half my age would have had. Almost like winding back the clock by 25 years. And it's stayed there ever since.
I also find that the rules of the diet can be applied to pretty much all everyday cooking and meal planning (inasmuch as I can be said to "plan" meals at all...) and seems to help with type 2 diabetes, arterial health, and more. (My father was having strokes by my age, on a generally much more natural diet, while my echo's and sono's all came back clear as a bell.)