Avocados are thought to be high in fat, which is true, but it is a good fat! It's mostly monounsaturated fat -- which is heart-friendly. Avocados are also a great source of folic acid, fiber, and the antioxidants vitamin A and vitamin E.

Half an avocado has about 150 calories. If you're watching your weight, you can make low-cal guacamole by mixing mashed avocado, taco sauce and lemon juice; dips calling for yogurt or sour cream can be much more caloric. (Of course, you'll need to be wary of the chips no matter what kind of guacamole you eat.) Sliced avocado can also be a healthy addition to salads and sandwiches.