i am vegan except for fish and some shellfish. tried being pure vegan for a while and was not able to keep up with the extra nutritional supplements required. been eating like this for four years, and at 34 have never felt healthier. only been fixed for a month. as to why i eat this way? a lot of reasons. i myself am healthier, and i feel better consciously, especially when i pet my dog. i would never want to hurt her. if you have ever seen footage from a slaughterhouse with what they do to creatures that are not all that dissimilar to my dog.... also, here is a little fact. agriculture pollutes more than all other industries combined. 70% of agriculture is to feed the animals killed for meat. i want as little to do with that as i can...