Muscle Milk own your strength. Energizing. Helps satisfy hunger. Helps build muscle. On-the-go nutrition. Anytime snack. Post-workout recovery. The science behind protein. Muscle Milk genuine contains a combination of high-quality slow releasing and fast releasing proteins to help increase amino acid levels. Essential amino acids, including leucine, play a role in muscle growth. Protein also helps support muscle rebuilding and maintenance of muscle mass. Notice: Product sold by weight, not by volume. Contents may settle during shipping and handling. Please recycle.