Because alot of us wouldn't be hear if it weren't for eating meat, you know like storing fat for the winter and also gaining vital nutrients, plus its natural because of our fangs and the fact we have an appendix (though not functional anymore being that we cook all of our meat) shows that we are made to eat meat. Plus were an alpha predator though instead of using instinct and brawn we instead use our evolved intelligence to develop ways of caputring, killing and eating animals. Also, its damn well tasty. So really in a way, without eating meat a lot of veggies wouldn't be here today, the ungrateful ba*bleep*s. Nah, I have some friends who are veggies. Anyway yeah positives to eating meat are the fact that we are naturally omnivores, eating meat is a quicker way of getting the nutrients.