Explanation – A1 and A2 milk differ in the type of beta-casein protein they contain. Beta-casein is a major protein in cow’s milk, and the difference between A1 and A2 milk lies in a specific genetic variation in this protein. A1 beta-casein has a histidine amino acid at position 67, whereas A2 beta-casein has a proline at the same position. This slight variation affects how the protein is digested and has been linked to different health effects. Recently, the Food Safety and Standards Authority of India (FSSAI) has asked Food Business Operators (FBOs) and e-commerce FBOs to remove all claims regarding A1 and A2 types of milk and dairy products from all packaging.

Source: AIR