Amino acid tryptophan is the precursor for the synthesis of melatonin and serotonin. These are neurotransmitters derived from the amino acid tryptophan. Within the pineal gland, serotonin is acetylated and then methylated to yield melatonin.
The amino acid tryptophan is the precursor for the synthesis of:
Held on 30 Apr 2016 · Verified 9 Jul 2026.
Melatonin and Serotonin
Thyroxine and Triiodothyronine
Estrogen and Progesterone
Cortisol and Cortisone
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