These are orthogonal issues. Yes, Cordain should provide proof for the diet he champions. Separately from that, she has written a book called "Paleofantasy" wh

These are orthogonal issues. Yes, Cordain should provide proof for the diet he champions. Separately from that, she has written a book called "Paleofantasy" which implies proof that the diet's precepts are invalid. Hence from her side showing that they might be invalid is not enough.