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Regular milk in the market contains both A1 and A2 Beta-Casein. A2 Protein Milk contains only A2 beta-casein.  A1 Vs A2 A1 beta-casein milk from breeds of cow like Holstein, Friesian, Ayrshire and British Shorthorn. A2 beta-casein is milk that high in A2 beta-casein is from breeds originated from the Channel Islands, South France and Jersey. A1 and A2 proteins give different effect to our body. A1 protein is digested in the small intestine and will produce a peptide called beta-casomorphin-7 (BCM7). The intestine will then absorb BCM-7 and passes into the blood. Studies show BCM-7 cause stomach discomfort and this result to lactose intolerance. Research show milk with the only A2 is more friendly to gut and smooth on the palate since this type of milk is comparable to human breast milk, milk from goats, sheep and buffalo. Fresh milk with just A2 is very rare in the market. In fact, this is my first time trying this too. I was introduced to A2 prote