Avocados are not only delicious but also a nutrient-dense and unique food that you should absolutely include on a ketogenic diet. Since avocados are technically a fruit, they are extremely unique in their high fat content. What other fruit gives you 10 grams of monounsaturated fat per 100g serving? Avocados are also rich in many vitamins, such as A,B,C,E,K. Additionally, they contain magnesium and potassium, which are essential to keep replenished on a ketogenic diet. Fiber is another nutrient that is critical to a well-formulated ketogenic diet, and avocados contain 7 grams of fiber per serving!