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

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.

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

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