Casein protein is naturally present in cow milk. This protein is especially beneficial for diabetic persons or patients of liver complications. Casein is effective in boosting athletes performance. As reliable source of amino acids, this protein has significant role in building muscles. Due to its slow digestion process, this protein is effective in controlling hunger by providing a feeling of fullness. Casein protein possesses unique immunity boosting attributes. As per research, this protein is also effective in controlling high blood pressure, in dealing with free radicals and also in promoting weight loss. This protein powder needs to be mixed with milk before consumption to get its full benefits.