Casein is the most predominant type of protein in milk. In fact, it represents about 80% of milk’s total protein content (1). It’s widely used as a pre-sleep protein supplement because it’s a more ...

Casein or whey protein? If you're serious about your training and your nutrition, then you should be you serious about your supplements, which makes the aforementioned question one of our ...

Casein is a protein found in dairy products. “There are two different types of protein in cow’s, goat’s and sheep’s milk—casein and whey,” says Kim Yawitz, R.D., a gym owner in St. Louis, MO. By ...

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Rachael Link is a registered dietitian and health writer based in San Francisco. She completed her undergraduate degree at the University of Central Missouri and holds a master’s degree from New York ...