Avocados are the perfect food for the ketogenic diet. They are rich in monounsaturated fat, omega-3 fat, and very low in carbohydrate. Avocados also have 60% more potassium than bananas. They are also a great source of B vitamins, as well as vitamin E and vitamin K. They have the highest fiber content of any fruit. There’s evidence to show that including avocados daily in a (regular) diet lowers cholesterol and triglycerides. The Hass avocado shown here is the most common variety available in the US. The larger, greener avocados grown in Florida are much lower in fat and higher in carbohydrate.