Casein is a protein found in milk and other dairy products.

Is casein found in all milk?

All mammals produce casein as a component in milk for their offspring. Human breast milk consists of 40% casein and 60% whey, while cow's milk protein is 80% casein and 20% whey. 1 Since casein binds to calcium and phosphorus, milk is a good source of these vital minerals.

What foods have the most casein protein?

That being said, you can also get plenty of casein from natural dairy products. Milk, natural yogurt and cheese are very high in this protein. Popular ways to get plenty of dairy protein without too many calories include eating cottage cheese or a high-protein natural yogurt.