There’s also likely an element of plain old inefficiency associated with throwing a bunch of food in the body at once. Every protein, fat, carb broken down has

There’s also likely an element of plain old inefficiency associated with throwing a bunch of food in the body at once. Every protein, fat, carb broken down has to be done so by some physical/chemical/enzymatic action. There are only so many chemical/enzymes in the body. If you put a small amount of food in, it’s more likely all of it will be completely broken down more effectively. If you try to digest a larger amount of food in at once, it seems plausible the digestion process could be less efficient.