You may not have lived in a buddhist country in which few people eat meat, yet everyone is still just as healthy as we westerners.

Since I have, I tend to be convinced that animal protein is highly overrated.

But anyhow, what makes you believe that the teeth you mention are a sign? In fact in humans, the incisives are very developed, the canines are reduced, and the molar teeth occupy a large flat area, which generally relates us more to vegetarian animals. Our mandible moves laterally, not up and down like in meat-eaters. We basically have a  lot more chances of being essentially vegetarian than omnivorous.