Whey and casein are one of the most popular types of protein powders in the market. What is the difference between the two?
Milk contains two types of proteins — casein and whey. Although they are both dairy-based proteins, a byproduct of cheese production, they produce very different results on a molecular level. Whey is 20% while casein is the remaining 80% from the solid part of skim milk when treated with acid. Casein is what you get when milk curdles.