This is why I could never be a vegan. I have many food allergies that cause a lot of body pain including wheat, soy and corn. Only the foods we evolved to eat (meat, fat, veggies, fruit, nuts/seeds) make me feel good. This is a big point of contention with me and one of the reasons I never took the 5 precepts. I can't mediate when in extreme pain but eating meat keeps the pain at bay. When I read that The Buddha and the Dali Llama ate meat it made me feel better about the situation..