A2 whole milk is a type of milk that contains only the A2 beta-casein protein, as opposed to the more common A1 beta-casein protein found in most conventional milk. Some people who experience discomfort with regular milk find A2 milk easier to digest, though scientific evidence on this is still developing.

In the U.S., A2 milk is available in various grocery stores and is often marketed as a more digestible alternative to regular milk. You can find it in gallon sizes, as well as in other sizes and types like skim or 2% milk. If you’re looking for specific brands or locations, checking local grocery stores or online retailers that specialize in dairy products can be a good start.