What does A2/A2 mean in milk?

A2/A2 milk comes from cows whose beta-casein is homozygous A2, meaning the cow only produces the A2 protein variant and not the A1 variant. A1 beta-casein produces a peptide called BCM-7 during digestion that some people associate with digestive discomfort.

Is A2/A2 milk easier to digest?

Yes. People who cannot tolerate regular cow milk routinely tolerate A2/A2 without symptoms. Clinical studies (Jianqin 2016, Sheng 2019) confirmed that A1 milk causes digestive symptoms that A2/A2 milk does not. The difference is the BCM-7 peptide, which only A1 milk produces during digestion.

Which breeds are A2/A2?

Jersey and Guernsey cows have high A2 frequency (60 to 90% A2/A2). Brown Swiss is moderate to high. Holstein is split, with selective breeding increasing the A2/A2 fraction. Goat and sheep milk do not contain A1 beta-casein at all.

Can I get raw A2/A2 milk?

Yes, where state law allows raw milk sales. Use the farm-to-door directory and apply both the Raw milk and A2/A2 dairy filters.

A2 milk near me: A2/A2 dairy farms and raw A2 milk

The actual genetic difference

Cow milk contains beta-casein, one of the major milk proteins. Beta-casein has two common genetic variants: A1 and A2. The two differ by a single amino acid (proline at position 67 in A2, histidine in A1). When A1 is digested, the body cleaves off a 7-amino-acid peptide called BCM-7 (beta-casomorphin-7). A2 does not produce BCM-7.

BCM-7 has opioid-like activity, slows gut transit, and drives inflammation. The strongest clinical studies (Jianqin et al. 2016, Sheng et al. 2019) found that A1 milk caused measurable digestive symptoms that A2/A2 milk did not. People who cannot tolerate regular cow milk routinely tolerate A2/A2 just fine.

What A2/A2 means in practice

A2/A2 designates a cow whose beta-casein is homozygous A2 (both copies are A2). Such cows produce milk with no detectable A1 beta-casein and therefore no BCM-7 in the milk. A2/A1 heterozygous cows produce a mix.

Which breeds tend to be A2/A2

Jersey: high A2 frequency, often 60% to 80% of a herd is A2/A2.
Guernsey: very high A2 frequency, often 90%+ A2/A2.
Brown Swiss: moderate to high A2 frequency.
Holstein: split, around 30% to 40% A2/A2 in conventional herds; selective breeding raises this.
Goat and sheep milk: do not contain A1 beta-casein at all (different protein structure entirely).

A herd is A2/A2 when every cow is genetically tested and confirmed homozygous A2. This is a deliberate breeding decision; most US grocery milk is a blend.

Who feels the difference

Anyone who has had stomach trouble with regular cow milk. Anyone who tolerates goat milk but not cow milk. Anyone whose kids react to store-bought milk. A2/A2 cow milk is gentler than A1 milk in every population that has been studied. People with a true IgE-mediated milk protein allergy react to all dairy and should avoid it; everyone else is a candidate to try A2/A2.

How to find A2/A2 milk

Use the farm-to-door directory and apply the A2/A2 dairy filter. Farms that have herd-tested for A2 status and produce exclusively A2/A2 milk are tagged. You can additionally apply the Raw milk filter to find raw A2/A2 milk specifically.

A2 milk near me: raw, organic, delivery, and farm pickup

Use this page for A2 milk near me, A2/A2 milk near me, A2 milk farm near me, A2 milk near me for sale, A2 milk near me delivery, A2 milk near me organic, and organic A2 milk near me. The best result is a named farm or dairy with herd testing, clear pickup or delivery rules, and current product availability.

Raw A2/A2 milk. Use raw milk near me plus the A2/A2 filter where state law allows raw milk sales.
Broader raw dairy. Use raw dairy near me for raw milk, cream, butter, kefir, cheese, and A2/A2 dairy farms.
Delivery routes. Use farm delivery near me when you need a dairy route instead of farm pickup.
Cultured dairy and cheese. Use raw kefir and farmstead cheese for adjacent dairy products from local farms.

A2 milk near me by high-supply state

State-modified searches like A2 milk near me in Pennsylvania, A2 milk near me in Virginia, A2 milk near me in New York, A2 milk near me in California, and raw A2 milk near me work best when the page can show real nearby dairy farms. Use the state pages below, then confirm herd testing, product availability, pickup, delivery, and raw milk legality with the farm.

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