ProtiDiet Protein Fruit Drink Concentrate 7 Servings Per Box Flavors Tropical Fruits, Wildberry, Peach Mango, Grape, Orange, Green Tea Cranberry, Kiwi-Melon. These ProtiDiet high-protein drink liquid concentrates from Pro-Amino come in 7 fruity flavors, with only 60-70 calories, zero fat and 15 grams of protein per serving. These delightful fruit flavored protein diet drinks come in easy-to-open liquid packets that you simply pour into a glass or bottle of cold water, give it a shake and enjoy