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

Casein is the main protein found in milk, and the type of casein present is what sets a2 Milk® apart from ordinary cows' 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® comes from cows that only produce the A2 protein and no A1.

The case for a2 Milk®

The difference between A1 protein and A2 protein is very small, but the tiny variance may make a big difference in the way the protein is digested. Published research suggests that some people may avoid stomach discomfort when they drink milk with only the A2 protein.

What milk is right for you or your family?

a2 Milk® is easier on digestion and may help some avoid discomfort. Give it a try today and love milk again. Find it in a store near you.

The a2 Milk® difference

Our a2 Milk® comes from cows that naturally produce only the natural A2 protein. a2 Milk® is 100% real milk that’s easier on digestion and may help some avoid discomfort.

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* No significant difference has been shown between milk from rBST-treated and non rBST-treated cows

a2 Milk® is not suitable for anyone medically diagnosed with lactose intolerance, galactosaemia or cows’ milk allergy

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