I dunno.
I'm a little dubious of the Zbigniew primitive's contention about someone eating "13,000" calories at a Chinese buffet in one sitting, and another "11,000" calories for dinner (where, the Zbigniew primitive doesn't specify).
That seems like an awful lot, even if just pure sugar.
I've never paid attention to calorie counts; if it rots the teeth, I've always avoided it.
That just seems damned near impossible, to eat that many calories. In a day, maybe, but at one sitting?
Illumination appreciated.