| Most of the iron in the body is found in the hemoglobin of red blood cells and in the myoglobin of muscle cells. Iron is needed for transporting oxygen and carbon dioxide. It also has other important roles in the body.
People take iron supplements for preventing and treating low levels of iron (iron deficiency) and the resulting iron deficiency anemia. In people with iron deficiency anemia, the red blood cells can’t carry enough oxygen to the body because they don’t have enough iron. People with this condition often feel very tired. Iron is also used for improving athletic performance and treating attention deficit-hyperactivity disorder (ADHD) and canker sores. Some people also use iron for Crohn's disease, depression, fatigue, and the inability to get pregnant. Women sometimes take iron supplements to make up for iron lost in heavy menstrual periods. Iron-rich foods, such as pork, ham, chicken, fish, beans, and especially beef, liver, and lamb are also used.
High doses of iron are unsafe, especially for children.
References: Medline Plus
|  Energizing Iron with Eleuthero, Integrative Therapeutics
Ferrasorb, Thorne Research
Hemagenics, Metagenics
Iron Citrate, Thorne Research
Iron Complex, Integrative Therapeutics
Iron-C, Pure Encapsulations
Liquid Iron with Folic Acid and Vitamin B12, Integrative Therapeutics
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