Trace elements

Last revised by Daniel J Bell on 2 Aug 2021

The trace elements are chemical elements which are essential - but only in tiny quantities - for optimal physical and mental well being. The elements are:

It is now contentious whether chromium is a truly essential trace element in the human diet.
The place of fluorine as an essential trace element has also been debated for many years. It is beyond dispute that small amounts of fluoride in the diet improves dental health. However is it truly an essential element?

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