Buselmo's stories about middle eastern competitors were the craziest. Starting Bumex, similar to Lasix, 3 months out. Then driven from competition venue in an ambulance. 
I heard some stories about a competitor who died at the world champs in India. They put the dude, who was already on diuretics, in a sauna where he lifted some dumbells to lose even more water. After a while he couldn't speak, just wheeze. Airways constricted and he died because docs were called too late. The whole team was apparently disqualified from what I heard.
Can't remember which country it was.
I think most pros who go to the doctor are on some type of BP med, with good reason.
Dude, my Saudi exchange students introduced me to a bodybuilder. Everything in diet is halal, no sweets, small anabolic arsenal, supplements like creatine (they consider it on par with steroids and almost worship it), then lots of diuretics leaning or into the show.
What buselmo said is almost exactly what this kid said, except some of them do not take protein powder as they consider it not right or not natural. Didn't understand their English but they were all violently opposed like they are with pork or meat from hooved animals. Very dry, bland foods. Usually cut out flat breads and pitas and eat falafel, potato, chicken, tuna, carb up on pasta and almost nothing else. I've looked at buddies regimen and it was all low test, some anabolics and really quite a reliance on completely drying out with diuretics. Maybe Ramadan gives them good tolerance for no fluids and hydration. Saw pics of his friends and no matter what class or what level they were conditioned like Munzer.