The other day i happen to come across a video of Dr.Zakir Naik, a preacher of muslim faith, where he was questioned by someone that why do people are non vegetarians? His reply was shocking
He started quoting verses from The Holy Quran and said that the God always wanted us to eat animals. He says that nature created some animals so that they could be eaten. To prove his point he said if you look at the teeth structure of herbivores animals like cow you will notice that the teeth line is flat at the bottom on the other hand carnivores animals like tiger have canines, now on the other hand humans have both flat and sharp teeth so it is by design,so that we could eat flesh. In Another example he said the herbivores animals can not digest meat and the tiger cannot digest plants but humans can digest both, so we are designed to eat meat.
I have no personal opinion of his thoughts but his analogies are interesting to hear.