Diet of a Rikishi (Sumo wrestler)

Diet of a Rikishi (respectable term for a Sumo wrestler):

1) They do not eat breakfast, or midday (on most occasions).
2) Overeating at night forces the body to store the extra energy as fat.
"The traditional meal is a stew called chanko-nabe. It has some kind of meat (fish, seafood, chicken, pork, or beef) and is served with rice and vegetables. Although the meal is high in protein for rapid weight gain, Chanko-nabe itself is not fattening. The secret is in the sheer amount that Sumo wrestlers [will] consume.
Sumo wrestlers also drink large quantities of beer. Alcohol increases cortisol levels which leads to fat deposits around the abdominal area, creating the ‘beer belly’. This is desirable in sumo wrestlers since a large stomach makes them more stable in the ring."
3) They also sleep almost immediately after eating.

Above is excerpt from http://answers.yahoo.com/question/index?qid=20080130181825AAFJQqW

Regarding 1 above, I think, by not eating breakfast, they make sure that the body does not set a high metabolism rate (which, I understand, is set at the start of the day depending on the amount of breakfast)...

So depending on timing of food consumption, the same food, in one case (i.e big-early-breakfast), will not lead to weight gain, and in other cases (i.e.no/late breakfast) will lead to weight gain.

Now I know how to gain weight! (My wife Nikhila knows that I said this too many times already with absolutely no results)