Let’s start with the basics. A2 milk is cow’s milk that only contains A2 protein. Cow’s milk is made up of 2 proteins: whey and casein. Casein makes up about 80% of the protein in milk and there are different types of it, including beta casein. There are also different types of beta casein proteins. The most common are A1 and A2.

Normal milk contains a mix of A1 and A2 beta casein proteins. But A2 milk, as the name tells you, only contains A2 beta casein protein. A2 beta casein protein is produced completely naturally by some types of cows, like our jersey cows. There’s absolutely no genetic engineering going on to make our cows produce our delicious A2 New Zealand milk.In fact, historically, cows produced milk that only contained the A2 beta casein. So, A2 milk takes you back to drinking milk the way that cows (and nature) intended.