An essential mineral. Iron is necessary for the tran sport of oxygen
(via hemoglobin in red blood cells) and for oxidation by cells (via cytochrome).
Deficiency of iron is a common cause of anemia. Food sources of iron include meat,
poultry, eggs, vegetables and cereals (especially those fortified with iron). According
to the National Academy of Sciences, the Recommended Dietary Allowances of iron
are 15 milligrams per day for women and 10 milligrams per day for men. Iron overload
can damage the heart, liver, gonads and other organs. Iron overload is a particular
risk in people who may have certain genetic conditions (hemochromatosis) sometimes
without knowing it and also in people receiving recurrent blood transfusions. Iron
supplements meant for adults (such as pregnant women) are a major cause of poisoning
in children.
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