Leroy, F., Smith, N., Adegbola T Adesogan, Beal, T., Iannotti, L., Moughan, P. and Mann, N. (2023). The role of meat in the human diet: evolutionary aspects and nutritional value. Animal Frontiers , [online] 13(2), pp.11–18. doi: https://doi.org/10.1093/af/vfac093 . " indicating evolutionary reliance on, and compatibility with, substantial meat intake" This paper has quite a lot of good information that I could quote and probably not a lot for me to actually write up so your best bet is to just go and read the paper. Here are some highlights. They state that is it likely that there is a contribution between the pushback on meat and the increase in disease seen around the world, this is because the removal of meat leave a broad spectrum of nutrients out of the diet. Not only is meat the best source for protein but it contains most of the global supply of vitamin B12 and is a good supply for " other B vitamins, retinol, long-chain omega-3 fatty acids, several minerals in ...