I can never see Khan as a user of any illegal substances, most people just see that he spent so much time with Pac they get trained by the same trainer well floyd thinks pac's a user so khan must be too.
IMO i would say Khan is as clean as they come, he has been through olympic style testing before and has never showed any problems with taking tests and on top of that he's never failed a test evr..

on top of this he is a muslim, he doesnt drink, he starves minself for ramadam once a year and i remember he even admitted he was a virgin a few years back. Do you think he would just decide to Juice up and forget about all his beliefs, i dont

he has his negatives for sure he talks to much crap and thinks he is a better fighter than he is but a drug user never ever IMO