Is Meat Natural?

Why do we eat meat if its so bad for you? Isn’t it natural to eat meat? Our ancestors all did! Humans are omnivores! We have canines!

The Comparative Anatomy of Eating: http://www.vegsource.com/news/2009/11/the-comparative-anatomy-of-eating.html
Teeth Graphic: http://freefromharm.org/wp-content/uploads/2014/12/comparative-anatomy-of-carnivores-omnivores-herbivores.jpg