Talk:Ultratrace element

Some possible sources

 * http://www.dcnutrition.com/minerals/mineral-abstracts.shtml - includes more work by Nielsen, alternative definition, and includes lithium as an ultatrace in humans. Andrewa (talk) 16:25, 29 January 2011 (UTC)

Stub categories
I'm a bit surprised to find no Category:human metabolism stubs or even Category:metabolism stubs or equivalents, especially since Category:Biochemistry stubs is so large. Andrewa (talk) 16:01, 29 January 2011 (UTC)