The late Blair River comes to mind. 6ft 8in, 575 pounds. Former gentle giant spokesman for the Heart Attack Grill, died at 29 from pneumonia after a bout of flu.
"Cynical people might think this (River's death) is funny," the restaurant's founder Jon Basso told the Arizona Republic. "But people who knew him are crying their eyes out. There is a lot of mourning going on around here. You couldn't have found a better person."
He died from pneumonia, a lung problem. Had nothing to do with weight or competitive eating.