Melatonin is derived from
Tryptophan is first hydroxylated by tryptophan Hydroxylase 5-hydroxytryptophan is decarboxylated to serotoninSerotonin is acetylated Fuher methylated with the help of S adenosylmethionine (SAM)Ref: DM Vasudevan, 7th edition, page no: 241, fig 18.10
Tyrosine
Tryptophan
Glutathione
None
Endocrinology