Consious eating by gabriel Cousens,M.D. Is a very good read on dietary intake.Toxic load along with exsesive calorie intake is the 2 biggest issues with animal products in general.Acid-base balance,blood type approach,and fast or slow oxidisers along with the catabolic-anabolic system developed by Dr.Revici never work 100% of the time.Man can sustain him/herself on vegatation alone.But its not easy in the land omnivores!