Assertion: tryptophan | /r/HasProperty | essential precursor
Facets:
value: for brain’s
type: PURPOSE
value: to many neurotransmitters
type: TRANSITIVE-OBJECT
Source sentences:
text: The reason it works on depression is that tryptophan is an essential precursor to many neurotransmitters, serotonin being one of the most important.
text: But what most people don’t realize is tryptophan is an essential building block for your brain’s