Milk is considered a wholesome diet for every age and gender and is a vital part of a well-balanced diet. Packed with dense nutrients like calcium, phosphorus, potassium, and Vitamin D, all these are essential for strong bones and good health. Of course, we all know that milk is a rich source of protein. But do we know that milk consists of two types of proteins, one of which is whey protein and the other is casein protein? Some nutrition is only found in A2 milk.