Premier Protein, a brand of Kings Mountain, N.C.-based Premier Nutrition Company LLC, says it added a new flavor to its Premier Protein 30-gram high-protein shakes line: Chocolate Peanut Butter. Each shake has 30 grams of protein, 160 calories, 1 gram of sugar, and 24 vitamins and minerals per serving. The shake also helps support a healthy immune system, thanks to antioxidants vitamins C and E; it is low in fat, keto-friendly and gluten-free.