Nutrients and neurotransmitters.
D000109:Acetylcholine / Q000096:biosynthesis; D000818:Animals; D001921:Brain / Q000378:metabolism* / Q000502:physiology; D002395:Catecholamines / Q000096:biosynthesis; D002794:Choline / Q000378:metabolism; D004032:Diet; D006801:Humans; D009474:Neurons / Q000378:metabolism; D018377:Neurotransmitter Agents / Q000096:biosynthesis*; D009747:Nutritional Physiological Phenomena; D012701:Serotonin / Q000096:biosynthesis; D014364:Tryptophan / Q000378:metabolism; D014443:Tyrosine / Q000378:metabolism
D002395:Catecholamines; D018377:Neurotransmitter Agents; D012701:Serotonin; D014443:Tyrosine; D014364:Tryptophan; D002794:Choline; D000109:Acetylcholine