Had the PSA last spring. Increased from 2.5 to 3.6 since the year before.
Decided to study it, found out that it could be affected by diet and supplements. Upped vit D3 to 10k iu/day, Very low carb (no wheat, starch, sugars), Vit K2, high dose fish oil (3000 mg EPA+DHA), coQ-10, magnesium...