Starchy vegetables contain more digestible carbohydrates than fiber and should be limited on the ketogenic diet. These include corn, potatoes, sweet potatoes and beets. Limit high-sugar fruits too, which spike your blood sugar more quickly than berries and have more carbohydrates (get a full list of low-carb fruits ranked from lowest to highest). Yogurt and cottage cheese are high in protein and calcium-rich.
https://www.nutriminimart.com/fitcore-life-keto/