-
Separate question is "should I take this in order to be able to perform in a way that I could >not without it, even though it is not banned/illegal, or would taking that deliberate action >put me over a personal, ethical line?"
Well, beetroot gives you a fairly large edge. So does hypoxic training, so does sleeping in an altitude tent, so does training at altitude. Not too many argue against those things. Grey.
Separate question is "should I take this in order to be able to perform in a way that I could not without it, even though it is not banned/illegal, or would taking that deliberate action put me over a personal, ethical line?"