Overview

Whey protein is one of the primary proteins found in dairy products. A byproduct of the cheese-making process, whey protein provides substantial amounts of the essential amino acids that are needed to carry out the functions that proteins perform in the body.

Whey protein — typically in the form of a powder — can be added to liquids or soft foods, such as applesauce, or blended with ice and fresh fruit to make a smoothie.

People commonly take whey protein to improve athletic performance and address nutritional deficiencies or problems.