text: Physically, the stomach can expand and take up all the space around the surrounding organs to actually fit the food inside--but that doesn't explain the weight. I remember hearing (sorry about the lack of source) that once you get to an outrageously large amount of food your body just wont take up the energy anymore... it would have to be an extreme amount, like in a hotdog eating contest.\nAlso, unless they train all year round, constantly, I assume their body naturally regulates by eating a smaller amount throughout the rest of the year.