With humans protein are structural components of the muscle fibers and geruestsubstanzeen of the bones,chords and skin.Also for the immune system they are of crucial importance.Proteins are molecules,which are split up in thedigestive track into amino acids and peptide.The amino acids are then used for the setting up of body-own proteins.From nutrition-physiological view therefore actually only the amino acid content of the food is decisive.One does not differentiate between essential,semi n essential amino acids.The special at the essential amino acids is the fact that they cannot be made depending upon need bythe body itself of other nutrient molecules.
