University of California, San Francisco researcher Dr. Ashley Mason has asked me to spread the word about a diet-health study she's preparing to conduct in collaboration with Dr. Lynda Frassetto. Dr. Frassetto is a widely recognized expert on mineral metabolism and bone health, and also one of the few researchers who has managed to wrangle funding to study the health impacts of a Paleolithic-style diet. Her findings have been quite provocative. Together with their collaborators, Drs. Mason and Frassetto are preparing another diet-health trial to study the impact of two different diets on polycystic ovary syndrome, or PCOS. PCOS is a common hormonal disorder among reproductive-age women, and its signs and symptoms include...