Is A2 the same as A2 A2 milk?
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5 min read
Historically, all cow's milk naturally contained only the A2 beta-casein protein, but a genetic mutation thousands of years ago resulted in a mix of A1 and A2 proteins in most modern dairy. This means that while many use the terms interchangeably, there is a technical distinction between 'A2' and 'A2A2' milk based on a cow's specific genetic makeup.
