A2 is one of the two most common variants of β-casein, the dominant type of protein in cow's milk (A1 is the other most common variant and they're named in the

A2 is one of the two most common variants of β-casein, the dominant type of protein in cow's milk (A1 is the other most common variant and they're named in the order in which they were identified). A2 has nothing to do with lactose, which is a sugar, not a protein. So "A2 milk" is milk with a smaller amount of A2 β-casein than normal and it should make no difference to people who cannot digest lactose. Be aware also that the health claims surrounding "A2 milk" are bunkum, much like the claims about "Real Water" [1] etc "health foods". From wikipedia: > The a2 Milk Company claims that milk containing A1 proteins is harmful, and some companies producing goat's milk products make similar claims,[5] but a 2009 European Food Safety Authority (EFSA) review found that it could not be established that bioactive peptides in milk containing both the A1 and A2 proteins have an adverse effect on health. https://en.wikipedia.org/wiki/A2_milk https://en.wikipedia.org/wiki/A2_milk ______________ [1] https://www.theguardian.com/us-news/2021/may/21/real-water-alkalized-liver-illness-death https://www.theguardian.com/us-news/2021/may/21/real-water-a...