When I was a bicycle messenger I had to eat stupid amounts of food. I needed 4-5000 calories a day. I had to eat two dinners every evening, one after work and one before bed. If I didn't get enough calories down during the day I would wake up in the middle of the night with my body screaming at me to EAT!, and like a zombie I would head into the kitchen and make a box of Kraft Dinner with a cup of butter and inhale it.
I did that for 2 years, and afterwards I developed an aversion to eating, I just got so sick of having to gorge myself at every meal, and never being able to go more than a few hours without thinking about food.