Editing Human nutrition (section)

==== Ultratrace minerals ====
Ultratrace minerals are an as yet unproven aspect of human nutrition, and may be required at amounts measured in very low ranges of μg/day. Many [[ultratrace element]]s have been suggested as essential, but such claims have usually not been confirmed. Definitive evidence for efficacy comes from the characterization of a biomolecule containing the element with an identifiable and testable function. These include:<ref>{{cite journal | last=Nielsen | first=Forrest H. | date=1998 | title=Ultratrace elements in nutrition: Current knowledge and speculation | journal=The Journal of Trace Elements in Experimental Medicine | language=en | volume=11 | issue=2–3 | pages=251–274 | doi=10.1002/(SICI)1520-670X(1998)11:2/3<251::AID-JTRA15>3.0.CO;2-Q | issn=1520-670X}}</ref><ref>{{cite journal | vauthors=Nielsen FH | title=How should dietary guidance be given for mineral elements with beneficial actions or suspected of being essential? | journal=The Journal of Nutrition | volume=126 | issue=9 Suppl | pages=2377S–2385S | date=September 1996 | pmid=8811801 | doi=10.1093/jn/126.suppl_9.2377S | doi-access=free}}</ref>
* Bromine
* Arsenic
* Nickel
* Fluorine
* Boron
* Lithium
* Strontium
* Silicon
* Vanadium