Basics
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Summary
Iron is a mineral that our bodies need for many functions. For example, iron is part of hemoglobin, a protein which carries oxygen from our lungs throughout our bodies. It helps our muscles store and use oxygen. Iron is also part of many other proteins and enzymes.
Your body needs the right amount of iron. If you have too little iron, you may develop iron deficiency anemia. Causes of low iron levels include blood loss, poor diet, or an inability to absorb enough iron from foods. People at higher risk of having too little iron are young children and women who are pregnant or have periods.
Too much iron can damage your body. Taking too many iron supplements can cause iron poisoning. Some people have an inherited disease called hemochromatosis. It causes too much iron to build up in the body.
Centers for Disease Control and Prevention
Diagnosis and Tests
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Ferritin Blood Test
(National Library of Medicine) Also in Spanish
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Iron Tests
(National Library of Medicine) Also in Spanish
Specifics
- Anemia (American Academy of Family Physicians) Also in Spanish
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Iron-Deficiency Anemia
(National Heart, Lung, and Blood Institute) Also in Spanish
Genetics
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African iron overload: MedlinePlus Genetics
(National Library of Medicine)
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Hyperferritinemia-cataract syndrome: MedlinePlus Genetics
(National Library of Medicine)
Statistics and Research
- FastStats: Anemia or Iron Deficiency (National Center for Health Statistics)
Clinical Trials
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ClinicalTrials.gov: Ferritins
(National Institutes of Health)
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ClinicalTrials.gov: Iron
(National Institutes of Health)
Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)
- Article: Vegetables with Enhanced Iron Bioavailability-German Consumers' Perceptions of a New Approach...
- Article: Effectiveness of low-dose iron treatment in non-anaemic iron-deficient women: a prospective...
- Article: Control variables of serum ferritin concentrations in hospitalized newborn infants: an...
- Iron -- see more articles
Children
- Iron (Nemours Foundation) Also in Spanish
- Iron-Deficiency Anemia (For Parents) (Nemours Foundation)
Patient Handouts
- Anemia caused by low iron - infants and toddlers (Medical Encyclopedia) Also in Spanish
- Ferritin blood test (Medical Encyclopedia) Also in Spanish
- Iron deficiency anemia (Medical Encyclopedia) Also in Spanish
- Iron in diet (Medical Encyclopedia) Also in Spanish
- Serum iron test (Medical Encyclopedia) Also in Spanish
- Taking iron supplements (Medical Encyclopedia) Also in Spanish
- Total iron binding capacity (Medical Encyclopedia) Also in Spanish