Musclemania® Colombia athlete Jhonny Diez says he's back on this diet. "I am going to train only for Las Vegas," the 6'1", 200 lbs., sports model says. "I 100% natural, always have been, so I am relying only on solid food. Not even supplements. I respond better and faster to my training each natural." Jhonny will be watching this weekend at MM Colombia in Cali.