Insulin? You're comparing diabetes to PED use? Lol, sure dude.
It's simple: do what the old timers did when their test got low. Retire.
diabetes as in your body doesn't produce a certain hormone?
what about fighters with depression and issues with dopamine, and using dopamine-reuptake-inhibitors like Welbutrin? Welbutrin can be used as a stimulant... are they not allowed that?
not allowing trt is fucking retarded.
we have long established guidelines for what is considered 'normal' in terms of testosterone levels, as long as it's prescribed and your levels are within what's considered 'normal', even if it's 900... who the fuck is the NSAC to say you can't do it?
is there a "normal" level of cannabinoids? fuck no.. so why the fuck would they allow a medial exception for potheads who smoke weed?
and why should they retire? if the only thing holding you back from fighting is your body's ability to recover from training/fighting is excessively low testosterone.. and it doesn't matter one goddamn bit WHY it's low, be it testicular cancer or prior steroid use (steroid use isn't illegal in all countries, mind you, fucking hollier than thou bitches.. and not everybody lives in the US), then why the fuck should a guy NOT use testosterone to remain 'normal'? are women not allowed estrogen/progesterone if they need it?
and don't use the argument that it's a performance enhancer.. because you sure as fuck can't show up and fight DRUNK, and that's definitely not a performance enhancer.