Let me start by saying that I am new to this forum, but find the advice given in The Primal Blueprint fascinating. It makes so much sense that the optimal diet (and lifestyle) for us should be close to the one that we evolved on.
However, I recently heard about research done by a Cornell professor by the name of T. Colin Campbell that gives convincing evidence that animal protein in excess of very minimal amounts is highly carcinogenic. Now I'm confused: maybe we shouldn't be eating animals?
Here is a video where he explains the research that he has done over the past 40+ years and why he has come to his conclusions. It's an hour long, but worth the watch.
I would really appreciate feedback on what you guys think.