Immediate And Prolonged Protein DeliveryPacking 40g high quality protein Muscle Milk Pro Series Protein Shakes provide all 9 essential amino acids which the body is not able to produce with an immediate and prolonged protein delivery in the body.Key Benefits40g high quality protein; 200 calories; 1g sugar; 5g fiber; Excellent source of 20 essential vitamins and minerals; Gluten Free; Suitable for most individuals that are sensitive to lactose.Powerful ProteinBe Strong. Recover Faster. Fuel Up. Succeed – Muscle Milk Pro Series Protein Shakes provide protein and essential nutrients to help recover and build muscle after hard training.