The answer is yes! Olives are a great source of healthy fats. In fact, much of the calories in olives come from fat. They also contain a fair amount of protein and very few carbs.  One ounce (28 grams) of olives contains 2 grams of carbs, 7 grams of fat, and 1 gram of protein. It also contains about 1 gram of fiber.  This makes them a perfect fit for a keto diet. (Actual nutrition depends on the variety; always check your label.)  Olives are also high in antioxidants and contain compounds that may protect against the risk of heart disease. So, not only are olives keto-friendly, but they offer health benefits as well.