Assertion: fluoride | /r/HasProperty | a trace element
Facets:
Source sentences:
text: In terms of human health and nutrition, fluoride is a trace element, which comprises a relatively small percentage of the body’s composition.
text: Fluoride is considered a trace element because only small amounts are present in the body (about 2.6 grams in adults), and because the daily requirement for maintaining dental health is only a few milligrams a day.