i'm quite confident most people (who aren't used to stuffing themselves to a pathologic degree) would be unable to finish a third of this horrid concoction.

The general number is 2000 kcal per day for an adult with a normal amount of physical activity iirc, most people split their caloric intake into 3 meals, so that's ~700 kcal. A third of this thing is ~900 kcal.

Fucking horrid.