The presence of the Beta-casein is the second most abundant type of protein found in milk, which occurs in two common variants in cow milk, known as A1 and A2. A1 variant of beta-casein is the protein type commonly found in most cows’ milk that is considered damaging for human health. A2 variant of beta-casein, on the other side, is found in desi cow breeds and possesses better nutritional value and essentials relatively.