With other natural flavors. 19 g of Protein. This delicious ZonePerfect Nutrition Shake offers a sensible balance of 40% carbohydrates, 30% protein and 30% fat. It also provides 24 essential to fit your busy lifestyle and a great taste to satisfy your appetite. ZonePerfect Shakes: Offer a good source of fiber; Are low in cholesterol, saturated fat and sodium; Provide 50% Daily Value of B Vitamins, Calcium & Vitamin D.