GNC Pro Performance 100 Whey Protein in Peanut Butter flavor is a high-quality, gluten-free protein powder designed to support healthy metabolism and lean muscle recovery when used in conjunction with an exercise program. Each serving provides 24 grams of protein, 130 calories, and 2 grams of sugars. It contains 9 essential amino acids needed for the growth, repair, and maintenance of muscles. The product is tested to meet industry standards and is certified Banned Substance Free. It is available in various flavors including Unflavored, Natural Chocolate, and Vanilla Cream.