From Monica Seles' book about her ED (via Lissa on We Are the Real Deal):
Another part of the book that really resonated is when she meets a sumo wrestler in China. When she asks him about his diet, out of curiosity, she has the horrifying realization that she’s been eating like a sumo wrestler, who does everything in his power to gain weight and keep it on … by consuming 15,000 calories a day.
Here are his guidelines for gaining weight and staying fat. (Note: these are NOT recommended!!)
1) Skip breakfast. This slows down your metabolism and keeps it down for the rest of the day, making it harder to burn off the calories you ingest at lunch and dinner.
2) Eat two big meals a day. Starving all morning and then gorging yourself in the afternoon is a surefire way to get fat. It ruins your energy and wreaks havoc on your metabolism.
3) Nap right after eating.
4) Exercise on an empty stomach.
5) Eat in social settings. Sumo wrestlers live in “training stables” and eat all of their meals gathered around a communal table.