Humans are not actually supposed to eat meat, but since we invented fire we've been eating it, so I guess we've changed the evolution quite a bit, so that will alone cross thoughts whether it's natural or not to eat meat, but most of the vegetarians don't eat naturally either, seeing that they usually cook their food, unless they follow a certain diet (
Raw foodism - Wikipedia, the free encyclopedia )
It doesn't really bother me to eat meat, and I do not believe that it's a murderer, because we're apparently used to eat meat (even if it doesn't digest properly) Animals eat meat in the nature too, but we have to note that humans kill a lot of more animals because the population is way bigger than any predators / omnivores around. Sure a lot of food goes to waste, but what can you do? Nobody who has the power to change it will do it because it's too good for the business.