I am going to interject and add my two cents here, starting with my love for meaty juicy goodness.
I love meat too much to give it up. Its just so yummy and good for you! It has trace vitamins and proteins that can't be found anywhere else. With that said, I strongly believe that we as homo sapiens, a species living on this planet and a member of the primate family, have evolved to need meat in our diets. We have advanced predatory brains, and such brains require animal protein to be converted to energy to sustain it.
Just look at our closest relatives on our evolutionary family tree, the chimpanzee. They eat meat. No ifs ands or buts about it. They coordinate group hunting parties to go out and hunt for monkeys and even chimpanzees from other family groups. They do so with great violence and this violence is only shared by us, the homo sapiens.
Now I am not saying we are supposed to go around killing and eating each other (and I could go to further explain that certain tribal peoples and religious groups do practice cannibalism, as taboo as it may seem to us in our modern society) but that isn't the point I am trying to make.
The point is, we are genetically programmed to need animal protein as part of our diet in order to survive, as set forth by our primitive ancestors and modern day cousins.
Its also set in dentin and enamel, more commonly known as our teeth. We bare the canines that were passed down to us from our evolutionary ancestors. Teeth modified to rip and tear into meat. Only carnivores have these teeth. We are made to eat meat.
“The day the power of love overrules the love of power, the world will know peace.”
― Mahatma Gandhi