Yes, it is very abundantly clear that those who prefer the meat high in protein and fat could take over any population which had more of a vegetarian diet. The

Yes, it is very abundantly clear that those who prefer the meat high in protein and fat could take over any population which had more of a vegetarian diet. The most glaring example of this is the Muslim conquest of India which happened primarily because the Muslims had a diet rich in meat and the vegetarian Hindu Indians lacked the necessary protein and fat and so were defeated.