02. Avocados
The Power: Oleic acid, an unsaturated fat that helps lower overall cholesterol and raise levels of HDL, plus a good dose of fiber. One slice has 81 calories, 8 grams of fat and 3 grams of fiber. Try a few slices instead of mayonnaise to dress up your next burger.
Good thing I made Guacamole yesterday. It went really well with super high-fat chips and artery clogging cheeseburgers.
The 29 Healthiest Foods on the Planet via Lifehack
(I’m not sure if either site is anywhere close to being an authority on heath foods)

Guacamole would be fattening and not good for you but Avocados are if eaten by itself and in small amounts are very good for you.