Nonessential
Essential
Alanine
Histidine
Arginine
Isoleucine
Asparagine
Leucine
Aspartate
Lysine
Cysteine
Methionine
Glutamate
Phenylalanine
Glutamine
Threonine
Glycine
Tryptophan
Proline
Valine
Serine
Tyrosine