No offence, but why do people who go vegan turn mean? My friend recently went vegan and now she is selfish, self righteous and goes around saying meat is evil and that all my health issues (PCOS, IR, hypothyroid) is because I eat meat etc. and calls people fat and lazy and disgusting...just rude and not nice comments about things/people now. It is very off-putting. I think she gets mad when I say I won't give up eggs/meat/fish. I just don't really get in to it with her. It is all she talks about though. Does changing diet really change people? I have become more positive/better person/more confident/hopeful since finding primal (all good traits) so I don't really get why she is all negative and rude and mean and thinks she is better than everyone because she turned vegan now.