Whey protein is naturally found and extracted from milk. The protein in milk is divided into 80% casein protein and 20% whey protein. Casein is a very slow acting protein and whey is fast acting. In 1 litre of milk is approximately 30 grams of protein, and so 6 grams would come in the form of whey - which is a very little amount. For this reason it's extracted into powder form. On average one scoop...
