Casein protein are protein supplements where the primary / only source of protein found within is derived from casein. Casein protein is a slow digesting source of whey protein making it perfect to take right before bed or a time when you know you won't be able to get nutrients in for an extended period of time.

Almost acting like a 'drip-feed' of protein for your muscles, you will find you will feel much fuller taking Casein compared to a WPI or a blended protein. 

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