[Skip to Content]

What's Protein?

Protein

Say: PRO-teen

Protein builds, maintains, and replaces the tissues in your body. (Not the tissues you blow your nose in! We mean the stuff your body's made up of.) Your muscles, your organs, and your immune system are made up mostly of protein. You'll find protein in lots of yummy foods like eggs, nuts, beans, fish, meat, and milk.