If Tyler does not ............................... will not be able to build CERTAIN PROTEINS.
Essential amino acids are those amino acids that the body can not produce on its own and one has to eat food that contain these amino acid in order for it to be available for body use. There are nine essential amino acids, they are histidine, leucine, isoleucine, lysine, methionine, phenylalanine, theronine, tryptophan and valine.