I mostly ate vegan food at Rainbow Gathering, and it screwed up my body completely. Some people can live that way...me, I have to have meat.
Everybody talks about how healthy being vegan is, and look at how rail thin they always are, like their bodies are wasting away. I don't believe that's healthy.
Besides, they'll live denying themselves the fine pleasures of fried slaughtered animals and other assorted yummies, then 90% of them will get hit by a bus at 35. Then the people who eat the yummy stuff will live to be centenarians. It's a total statistical fact.