Afood source that contains all the essential amino acids is called a(n): complete protein, incomplete protein, fatty acid, or whole grain ?

Complete protein

Explanation:

For a protein to be considered complete it must contain all eight essential amino acids. Which means it contains everything the body needs to produce all kinds of protein structures. If your diet does not have a full range of essential amino acids, then you could have problems with certain structures like hair or nails. The eight essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine.