If youre a milk drinker, you may have heard about A2 milk and A1 milk. But what are they, and whats the difference between them? A2 milk is a type of cows milk that only contains the A2 beta-casein protein, while A1 milk contains both A1 and A2 beta-casein proteins. In recent years, A2 milk has gained popularity among consumers who believe its healthier and easier to digest than A1 milk. In this article, well take a closer look at the differences between A2 milk and A1 milk, and why it matt