First of all, thanks to the loss of "elasticity" of the stomach. The main function of the stomach is to grind and mix food evenly and process it into soft chyle for further digestion and absorption. Due to the lack of exercise function of the stomach, it is difficult for the food swallowed by the big stomach king to be completely digested and absorbed in the intestine. Kinoshita Yuuka, the Japanese king with a big stomach, once revealed that he would "shit a lot" when he went to the toilet after a big meal, which may be one of the reasons why the king with a big stomach kept slim.

In addition, in addition to the scenes we can't see, the big-eaters have also made great efforts to keep fit. Chesnut once said that he would stop eating within a few days after the game, so that his swollen stomach would slowly disappear. No one wants to get fat, especially those who eat too much: the obese figure will lead to the thickening of the abdominal wall, the increase of abdominal pressure and the increase of visceral fat, which will have a devastating impact on their competition results. In order to reduce calorie intake, many big eaters only eat in front of the camera. They need extraordinary self-discipline and willpower to avoid being overweight in the fierce competition.

In addition to diet control, exercise is also essential. South Korea's eating and broadcasting popular line "Mercedes-Benz Brother" is a fitness instructor. He claims that he spends eight hours in the gym every day except eating and sleeping. A similar clue can be seen from Kobayashi Takeru, the ancestor of the Big Stomach King: before the game, his stomach was covered with pieces of abdominal muscles. After the game, his stomach bulged, but he could still see the outline of his abdominal muscles. You can't exercise by sitting and eating.