CITI says sell, page-89

http://fussfreeflavours.com/crockpot-carrot-cake-overnight-oatmeal/

"I used a2 milk for my porridge, which is ideal for many people who cannot tolerate the A1 protein in regular milk. I’ve written about the A1 and A2 protein in milk before, but to summarise there are two types of beta-casein protein, A1 and A2. Historically cows only produced the A2 protein, but as they were domesticated the A1 protein, which some people are intolerant to, appeared. a2 milk is made from cows who naturally only produce the A2 protein and many people who have problems digesting regular milk find they can drink a2 milk with no problems.
Really interestingly a new study shows that if you drink milk with the A2 protein, so a2 milk there is a significant increase in the natural production of antioxidant glutathione, which is important in the regeneration if immune cells, and has to be produced by the body rather than taken as a supplement. The results also showed that consuming any type of cows milk raised the levels, but the level was approximately twice as high for those who consumed the a2 milk. "