What causes cows milk intolerance?
Cows’ milk contains two major protein groups, casein and whey. Beta-casein is the main casein protein, and the most common forms of this are A1 and A2. Most dairy cows in Australia are A1, so-called because they produce milk with A1 protein. A much smaller group of dairy cows produce milk containing just the A2 protein, and many sufferers of cows’ milk intolerance find that they can tolerate cows’ milk that contains the A2 protein only. As most fresh milk brands contain both A1 and A2 proteins, it is important to identify A2 milk in the supermarket if you are aiming to try milk containing the A2 protein only. All milk containing the A2 protein only is DNA tested and certified to ensure that buyers only receive A2 Milk.
