as far as I have seen to date, this whole "cornclusion" was Post hoc (... ergo propter hoc), comparing blood work after a PC diagnosis was made, to blood work of some non-afflicted control pool. Never mentioned was the blood work of the cancerous group in the pre cancerous state. Otherwise, sounds like afflicted men jumping on every possible curative bandwagon once they face the diagnosis.
The rough equivalent of 2 oily fish servings a week give one PC ? LOL . Not.
Lets see some O3::PSA graphs across some time (nevermind us charmed guys wearing big honking prostates that record blow-out PSA numbers with fine, very fine organs ;)
Until then Proverbs 26:4-14 is as good a guideline as any .