The Critical Differences Between A1 and A2 Milk

The Critical Differences Between A1 and A2 Milk
Different cows, different milk. Holstein cows produce more milk but of the inferior A1 casein variety. Older breeds, such as Jersey cows, produce A2 casein milk.StockMediaSeller/Shutterstock
Sina McCullough
Updated:
Dairy is a common trigger for autoimmune and chronic diseases. Consequently, sometimes people reluctantly remove dairy from their diet in an attempt to heal themselves. I went dairy-free for roughly five years in order to reverse rheumatoid arthritis. I believe removing all dairy from my diet was a critical step in my healing journey. However, if you don’t want to give up your cheese, there might be another option.
While milk contains a protein called casein, which can trigger autoimmune diseases such as multiple sclerosis, not all casein is the same. There are two known forms of casein: A1 and A2.
Sina McCullough
Sina McCullough
Sina McCullough holds a doctorate in nutrition and a bachelor's in science in neurobiology, physiology, and behavior from UC Davis. She was director of research and development for a supplement company and taught biochemistry and bioenergetics at UC Davis.
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