New York Times best-selling author Dr. Joseph Mercola teams up with cardiovascular expert Dr. James J. DiNicolantonio to cut through the confusion about how dietary fats affect our bodies--and set the record straight on how to eat for optimal health. Should you cook with coconut oil or vegetable oil? Eat butter, cream, or olive oil? Supplement with fish oil or flax oil? Sometimes it seems as if everyone has a different opinion on these...