Your healthiest option may be to skip both the butter and the margarine.



Baker recommends using monounsaturated fat instead: olive oil for dipping bread or vegetable oil for cooking. "If you love the taste of butter and you want to sauté some mushrooms in it, I'm not going to say you can't do it, but maybe try using a little less butter and a little more oil."



Use avocado and nut butters in place of butter on sandwiches, she says. "That way you're getting fat intake but it's healthy fat intake." (Calories from any source of fat add up quickly, though, so be conscious of your portion sizes as well.)