Ask any dentist and he/she will tell you that human beings are *designed* to be omnivores. Ask any African wildlife expert and he/she will tell you that wildebeest are designed to be herbivores and that lions are designed to be carnivores.
This isn't rocket science.
Exactly....
Either a brontosaurus, or a T-Rex. Predator or prey. Top of the food chain, or food.
This is not rocket science.