I found Cordain's book to be disappointing, too. I wanted to read the most recent findings and evidence of what paleo people ate, and THEN an analysis of the implications. Instead, I read a bunch of diet recommendations that seemed to be only tangentially related to paleo eating. For example, he says to only eat the white meat of a chicken. I'm sure paleo people didn't throw out part of every bird they killed. This seems to be a book on nutrition with conclusions drawn from many sources--only one of which is what paleo people ate. He doesn't hesitate to recommend deviations from paleo eating if it meets his own criteria for good nutrition. This isn't the type of book I was hoping for. - Sheryl