Muscle Milk Genuine Protein Shakes help support muscle rebuilding, muscle growth and maintenance of muscle mass. Each shake provides a combination of high-quality slow releasing and fast releasing proteins to provide a more sustained delivery of protein compared to whey alone to help you own your strength. Muscle Milk Genuine Protein Shakes include a blend of high-quality proteins that help fuel workout recovery, provide sustained energy and help build strength in a gluten free formula. These protein shakes can be used pre-workout, post-workout or a protein-rich snack. Muscle Milk Genuine 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.