[0x737368]

Competitive eaters throw their food up and keep it secret as "I'm just calorie counting" sounds a lot better than "I pretty much have an eating disorder". You can't eat large portions once a week and still train your stomach to stretch enough to eat those gargantuan amounts of food that they need to perform.

[BrawnyBadger53]

Some do this, some go on binge fast cycles. Others just eat the food. It's different for everyone. Binge fast cycles are probably the easiest way to train this though.