Non-essential Essential
Alanine Arginine *
Asparagine Histidine
Aspartate Isoleucine #
Cysteine# Leucine
Glutamate Lysine
Glutamine Methionine
Glycine Phenylalanine
Proline Threonine
Serine Tryptophan
Tyrosine Valine #
(* only in growing young, not in adults)
(# BCAA branched chain amino acid)
Table 1: Non-essential and essential amino acids.