Really? Do tell me about the "bunch of supplements" I have to take in order to live vegan. And while you're at it, check out the stats on the life span of vegan vs meat eaters. It about 10 years more for vegans. Heart disease, diabetes and a bunch more diseases not really a problem for vegans. Oh and what was it that came out a few months ago from the government? Oh, yeah vegan and plant-based diets are the healthiest diets. Finally, there must be a ton of vegans around to judge by all the vitamins and supplements that I see, oh, everywhere.  Hmmmm.  Sounds like you don't really understand anything, including how your own body works and whats best for it. But don't worry, I'm sure evolution will take care of the problem.