Assertion: tryptophan | /r/HasProperty | available
Facets:
value: as supplements
type: MANNER
value: readily
type: MANNER
value: as tablets.6
type: OTHER
value: as capsules
type: MANNER
value: until 1991
type: TEMPORAL
value: without prescription
type: OTHER
value: widely
type: DEGREE
Source sentences:
text: Tryptophan is widely available as a dietary supplement.
text: Tryptophan was available without prescription until 1991 when the FDA prohibited its over-the-counter sale because a tryptophan manufacturer (Showa Denko KK) in Japan shipped a contaminated batch to the U.S.
text: If tryptophan is available, making those genes waste energy.
text: That prevents these five genes from being made and saves energy because tryptophan is available.
text: Tryptophan and l-tryptophan are available as supplements, capsules or tablets.6
text: Although you can’t supplement with serotonin itself, tryptophan is readily available as a safe, well-proven supplement.8 Supplementing with tryptophan helps normalize levels of serotonin and other neurotransmitters.