Amino acids that can be manufactured in a healthy body from the essential amino acids obtained through diet. [See Amino Acids

an amino acid that the body can manufacture

These can be synthesized by the body from other amino acids. They include: ornithine, carnitine, tyrosine, glycine, histidine, cysteine, cystine, proline, citrulline, serine.

amino acids that may be formed in the body and thus not need to be obtained in the diet; also knows as dispensable amino acids.

amino acids that can be synthesized by the human body in sufficient amounts to meet needs. The nonessential amino acids are alanine, arginine, asparagine (aspartate), aspartic acid, cysteine (cystine), tyrosine, glutamine acid (glutamate), glutamine, glycine, proline, and serine.

eleven amino acids required for protein synthesis that are synthesized by humans and are not specifically required in the diet