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Iron

Iron is an essential mineral that has several vital functions in the body. Its main function is to serve as a carrier of oxygen to the tissues from the lungs by the red blood cells. It also serves as a transport medium for electrons within cells, and as an integrated part of important enzyme systems in various tissues. Although iron is both plentiful and obtainable from a wide variety of foods, iron deficiency is still the most common form of mineral deficiency. Common symptoms of an iron deficiency include fatigue, dizziness, and moodiness, along with other symptoms.