Avocados The avocado boasts a sweet, nutty flavor. Many people think of the avocado as a vegetable, but it is a fruit. In Hawaii and South Africa, the avocado is served with sugar and lime juice for breakfast. To speed the ripening process, place in a paper bag. Avocados are high in potassium, low in sodium, make a fine buttery spread without the butter. Also great for guacamole or a healthy salad.