There are 2 kinds of protein in milk; whey & casein. The product whey protein, as the name suggest consists only one of the 2 proteins in milk or is formed as a by-product of cheese making. On the other hand, regular milkshakes or even a normal glass of 200 ml milk contain only 6g or less amount of protein. Raw Pressery’s high Protein Milkshakes combines the best of both worlds and offers 3 times more protein than regular milk / milkshake i.e 18g per 200 ml. It also contains both casein & whey in the ration 80:20 and contains very little fat & carbohydrates, is loaded with amino acids and is very easy to digest for children, young adults and seniors. Daily Protein. Dairy Protein.