paleo diet paleo diet
Vlad Averbukh, 29, a follower of the paleo diet, eats raw meat along the Hudson River in New York in 2010. (Averbukh did not weigh in on our blog post on the paleo diet.) Emmanuel Dunand/AFP/Getty Images hide caption
Some physicians say the theory of "evolutionary medicine" can help guide the treatment of modern ailments like obesity. iStockphoto.com hide caption