Your argument is self defeating: if the body is inefficient at digesting these things, you probably shouldn't eat them. Eating fat certainly makes you gain wei

Your argument is self defeating: if the body is inefficient at digesting these things, you probably shouldn't eat them. Eating fat certainly makes you gain weight. This is a fact. > as nearly everyone's diets were prior to the rise of agriculture on the order of 8 to 12 thousand years ago lol. This is not true. Cereals and starches were scarce, but meat was not a large part of the diet: at most it was 40%. Certainly not 100%.