Optimum Nutrition Gold Standard 100% Casein, 2 LB, Chocolate SupremeOptimum Nutrition Gold Standard 100% Casein, Chocolate Supreme, 2 LB, is a highquality protein supplement designed for muscle building and recovery. Casein protein, which constitutes 80% of milk proteins, is known for its slow digestion and absorption rates. This slow release of amino acids helps build muscle and prevents muscle wasting over extended periods. It is particularly beneficial for use at bedtime, during long periods without food, and