From Manufacturer''s Label:Gold Standard 100% Casein can help provide longer lasting amino acid support when nutritional support won’t be available for a while between meals and before bed. Right before or after training, rapidly digesting whey protein helps start recovery, a process that can take up to 48 hours.Casein proteins are pH sensitive and gel in the acidic environment of the stomach. As a result, it can take longer for caseins to be broken-down into their amino acid subcomponents than whey and other proteins. Because of their unique slow-digesting qualities, caseins are described as anti-catabolic or muscle-protecting proteins.Beyond the Basics:* 24g of Anti-Catabolic Micellar Casein * Nearly 5g of Naturally Occurring BCAAs per Scoop* Nearly 5g of Naturally Occurring Glutamine and Glutamic Acid per ScoopChocolate Supreme flavor.Manufactured by: Optimum Nutrition