Jul
14
2014
Recently, there's been a lot of talk about A2 milk. Let's begin by explaining A2 milk and how Brown Swiss cows play a part in its development.
All milk contains six different types of protein- four casein proteins and two whey proteins. The casein proteins make up about 80% of milk and one of these is the beta casein, of which the two most common forms are A1 and A2.
Originally, ALL milk was A2, but due to a genetic mutation that occurred at some point, A1 gradually became the prevalent form of beta casein. Recent studies now show a possible link between A1 milk and certain illnesses, namely diabetes, heart disease, schizophrenia and autism, though it has not been officially proven. Researchers suggest that this may be the reason some people have a perceived intolerance to standard milk which has created a growing demand for cows that are A2 dominant.
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