A1 vs. A2 Milk: What’s The Difference? | a2 Milk® USA

A1 vs. A2 protein: what’s the difference?

The main difference between ordinary and a2 Milk® lies within the milk’s protein. To better understand the protein, it’s helpful to first review the milk’s content.

All milk is made up of water and solids. The solid components within milk are:

  • Lactose (milk sugar)
  • Fat
  • Minerals
  • Protein

There are different types of protein in milk: whey and casein; the casein protein is what differs in ordinary milk vs. a2 Milk®.

There are two types of beta-casein: A1 and A2. Most cows’ milk available on grocery store shelves contains a combination of these A1 and A2 beta-casein proteins. a2 Milk® only contains the A2 beta-casein protein.

what is milk made of graphic

What happens when you drink traditional milk

When you digest A1 protein, a small piece of protein breaks off, which can cause inflammation in the small intestine that may lead to bloating, gas, tummy grumbles, even diarrhea.

Because these stomach troubles look and sound a lot like Lactose Intolerance, many people assume that it is lactose (the sugar in milk) that’s causing the problem. But there is clinical research that A1 protein may be the culprit, not the lactose.

The case for a2 Milk®

The difference between A1 protein and A2 protein is very small, in fact, just one amino acid is different in the chain that makes up the protein. But that tiny variance makes a BIG difference in the way the protein is digested.

When you digest A2 protein, it stays in larger sections and may not cause the same kind of inflammatory response in the gut; in some people, this means fewer tummy problems.

What milk is right for you or your family?

If you experience upset stomach, bloating, gas, or even diarrhea after drinking common milk brands, a2 Milk® may be perfect for your family.

Families that drink a2 Milk® say that it’s delicious and easier on digestion.

Try it today and love milk again. Find it in a store near you.


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