I never said it was considered cheating. But it's just a MAJOR part of the sport and to leave it out, you're really not making a documentary.
lol at bodybuilding being "interesting and special." Inject, eat, lift, repeat. Yup, very interesting and special, alright.
You said you weren't a filmmaker, so are you really qualified to say what documentary IS? Isn't that kind of arrogant? Maybe if you studied documentary filmmaking a but more, as I have, you might see it differently.