andrew wile,ing university of arizona health sciences center, he is a columnist for prevention magazine and a best selling author, true food, seasonable, sustainable, and pure. good to have you with us. >> thank you. >> let's start with saturated fats. the ones that effect most people, for centuries we have been told, don't eat high fat diets. the american heart association advocates for low fat diet. now we've got dr. oz, all sorts of papers and boorks that say maybe saturated fats aren't that bad for you after all. >> it may be that saturated fats are not that bad for us. i don't think we circulate eat them with abandon. it may be that all saturated fats are not created equal. for example, the saturated fat in meat is not great for your heart or arteries. whereas, the saturated are fat in dairy products may have a protective effect. >> the book that came out that said, the big fat surprise, saying butter is better for you than vegetable oils. >> i think olive oil is much better but keep in mind you have a saturated fat budget and decide how you want to spend it. do you want to have ie