Pea protein powder is made by extracting the protein from ground yellow split peas.

Whey protein powder is made from a high protein milk byproduct of the cheese making process.

Casein protein powder is made in a similar method as to how cheese is made from milk.

Various methods are used to create and concentrate proteins from different plant sources.

Hemp protein powder is made from hemp seeds that have been ground into meal and had the oil extracted with a cold expeller press.