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Elemental calcium: Wikis

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Elemental calcium is a term used in dietary supplement ingredient lists to refer to the amount of calcium in a product.[1] 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. The term is also used in medicine to refer to the amount of actual calcium which is needed for a treatment, to be administered as part of a salt such as calcium chloride.[2]

In nature, pure calcium metal is never found, instead forming minerals such as gypsum and calcite.


  1. ^ [1] Women, Hormones and the Menstrual Cycle
  2. ^ [2] The Washington Manual of Surgery

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