And that is what they were put on the planet for food. before man animals ate animals as they do now, we are 'animals' just more advanced thats how man survived way back when and we still do...
yes some humans did for a period of time, and still does survive this way, but we were not meant to, and these days we don't have too.
take other primates like gorillas, baboons, chimpanzees which we resemble most, they are all vegans and are not suited for animal consumption either.