> It is well known that most of the people in the west consume way more proteins that is required by their body If prehistoric humans didn't get their calories

> It is well known that most of the people in the west consume way more proteins that is required by their body If prehistoric humans didn't get their calories from protein, how do you suggest they got them? Certainly not from sugars (found mainly in modern cultivated fruits) or starches (found mainly in modern cultivated grains). I'm not saying your "too much protein" thesis is wrong (I don't have enough of an understanding of nutritional history and anthropology) but can you give some better supporting documentation?