From hot dog-eating contests to oyster-gulping gorge fests, competitive eating is made for the oversized appetite. But how do speed eaters hold such immense amounts of food, and what happens to their bodies when they do? Now, NGC bites into the gut-wrenching world of competitive eating as doctors examine a competitive eater?s stomach. Follow along with three of the world?s top competitors as they devour their way through the professional speed eating circuit.