A2a2: A2A2 milk contains only the protein A2 beta-casein. As opposed to “regular” A1A2 milk, which also contains A1 beta-casein (which can be harder for some people to digest).
There are hardly any tested A2A2 cows available in our area, so we have often had to test whole herds to find a couple of cows which are A2A2 that also meet our other standards. We’ve sold off excellent cows that we loved because they weren’t A2A2. We invested thousands of dollars into a second…