Quote Originally Posted by Sasquatch
A lot of things are common knowledge. I consider it common knowledge that plant matter is more difficult to digest. Which is why many herbivorous animals, birds especially, have a functioning gizzard. Humans don't have gizzards. We also only have one stomach. Have you ever seen horse manure? You notice all the pieces of grass and hay sticking out of it? That's because it hasn't all been digested. Now, what credible sources do you have that meat is so much worse for us than plant matter?
Of course it is. Plants are harder to digest because they have cell walls instead of just a cell membrane like protein has, so it's harder to digest. Most of the plants we eat aren't digested fully at all.