Amino acids Whoever claimed this has a significant amount of tryptophan is a danger to themselves and others For someone who is bipolar it is a nasty trick You can not make serotonin or B12 without tryptophan Tryptophan 0 4 g Threonine 1 6 g Isoleucine 1 6 g Leucine 3 2 g Lysine 3 1 g Methionine 0 5 g Cystine 0 5 g Phenylalanine 3 8 g Tyrosine 1 1 g Valine 1 9 g Arginine 2 7 g Histidine 1 6 g Alanine 2 g Aspartic acid 4 4 g Glutamic acid 10 3 g Glycine 1 6 g Proline 2 g Serine 2 1 g