Assertion: melatonin | /r/HasProperty | sold as supplement
Facets:
value: in the u.s.
type: LOCATION
Source sentences:
text: Melatonin is sold as a supplement, so it is available without a prescription but is not regulated by the FDA.
text: Melatonin is a hormone made by the body; it's also sold as a supplement.
text: It should be noted that melatonin is sold as a supplement, which means companies selling it are not required to prove it is either safe or effective.
text: In the U.S., it is sold as a supplement.