calcium By Ivan Suarez Robles 14 Nov, 2010 An essential element that the body gets through food. A proper balance of this element is needed for cell survival.Related Articles: Inhibition of mitochondrial protein import by mutant huntingtinGlossary: magnesium ion (Mg2+)Glossary: neuroprotectant drugsThe Wahls Protocol and HDGlossary: osteoporosis