He supposedly has some kind of metabolic disorder, but he also said he's seen a doctor and gotten it fixed, so who the hell knows. I tend to lean towards the side that he just doesn't put in the work.
Dude, is just a lazy *******. He blows up between fights. He has to lose 40 pounds just to make weight. Ridiculous.
Joan Guzman had a problem with his thyroid gland, obviously its not making him lose the weight. Nothing to do with disicipline