Pure Raw Casein Protein is a type of dairy protein that takes a long time to digest and is commonly used as a supplement. It slowly releases amino acids, thus it's commonly used before night to aid recuperation and decrease muscle breakdown while sleeping. It has been demonstrated to help in muscle growth, as well as a slew of other advantages. It can be consumed at any time of day and with any meal. It's a slow-digesting vitamin that keeps us satisfied for a longer period of time.