Elemental calcium

Elemental calcium

Elemental calcium is a term used in dietary supplement ingredient lists referring to calcium in its cationic form, Ca2+. A pill supplying calcium will be in the form of a calcium compound, typically calcium carbonate. Calcium carbonate is 40% calcium by weight, thus a 500 mg pill of calcium carbonate contains 200 mg of calcium and the container will indicate each pill has 200 mg of "elemental calcium".

References

* [http://ods.od.nih.gov/factsheets/calcium.asp The National Institutes of Health web page on dietary suplements]

*


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