@jeffmarc What I saw in the article looked a lot like a promotion for supplements. A lot of a conflating the benefits of exercise and staying at a proper weight and reducing saturated fats with a vegan diet. Associations that were better but not significant like better with 28 vegetable servings a week vs. 14 or less with no quantification of benefits or a general recommendation for 56-70 servings of vegetables and fruits a week. Not even worth trying for those. There were a few gems like the 41% decrease of cancer with 3+ servings of broccoli, bok choy, cabbage, kale, or cauliflower a week. There was also the 40% decrease from Omega3. Not sure I believe those numbers, but since I tick both of those maybe that is why I am okay with ignoring the rest. It is really about exercising, maintaining healthy cholesterol levels, and keeping the weight down more than what you eat. Doing that should be easier on a vegan diet. However, a lot of what is consumed is leveled out by stomach acid. Studies show no relationship between consumption of red or processed meats and progression of prostate cancer although they did show 10%+ increased risks for heart health as well as initial colorectal cancer.

As I said before, do what makes you happy even if that is a vegan or other restricted diet. Keep consuming those lutamides since that probably has more effect on prostate cancer suppression than everything else in the diet.