Hi Andrew,
A quieck question, to see if I understood your poing. Would it be right, according to your point of view, to eat animals as long as they don´t suffer when they´re raised/slaughtered?
I live in Spain, where there is a national tendency to make bulls suffer in all possible ways (not only in bull rings). They say "it´s a tradition" and off they go with the "celebrations". Of course, this is quite cruel. But from this point to saying that we should not eat animals see more at all, I think there is a long way and nobody is 100% right, in general.

Regarding the comparison of the human body and that of herbivores, I think I heard our teeth are more carnivore-like than herbivore. Please correct me if I´m wrong. It´s a very interesting subject without a doubt!
Regards,
Hernán