Yes! Both kalamata olives and feta cheese are keto friendly. Olives are a great option on the ketogenic diet because they're low in carbs and high in healthy fats. 10 olives has about 3 grams of net carbs. Feta cheese is also very low in carbs - it has about 1.5 grams of net carbs per 1/4 cup serving, so it's great for keto as well! Both of these ingredients taste great in this low carb summer salad.