Proteins are made up of the combination of amino acids. They are the living matter: skin, muscles, internal organs, nails, hair, brain, skeleton. Chlorella is one of the foods richest in proteins (60% of its content). Moreover, it contains 18 different amino acids of the 22 which are found in nature and these, when combined, become the body's proteins.

Proteins are used in the production of antibodies, hormones, enzymes and corpuscles.