People argue that meat is our ancestral food, that we evolved while eating meat (for at least 2.5 million years) and are accustomed to it, whereas bread is too new for us to be able to properly handle (only 10,000 years or so).

These same people fail to argue that fruit is our ancestral food (65 million years!) that mammals and angiosperms evolved this partnership where the plants produced fruit for us while we spread their seeds for them. And fruit is the primary component of chimpanzee and bonobo diets, our closest living relatives.

But because fruits contain fructose and in general carbohydrate, the people arguing for meat argue against fruit! Even though the evolutionary argument for fruit as the food we are most evolved to eat is FAR stronger.

So put that in your thinking cap and spin the propeller.