Iron

Most people think of anemia when the mineral iron is discussed. But iron is an important nutrient for all areas of the body, especially the brain and the aerobic muscles; it aids in the production of neurotransmitters and other brain chemicals, is in the protective covering of nerves, and helps carry oxygen in the blood to all parts of the body. Most people can obtain sufficient iron from a healthy diet, especially from beef and other meats. Vegetable sources of iron, such as spinach, are not as well absorbed. If supplements are necessary because of a clear indication of need, such as a blood test that shows low levels, a relatively low daily dose such as 10 mg for a month or two may be enough. Higher doses of iron can be irritating to the intestine and very unhealthy for the whole body. If you have a continuous need for iron, something more important may be missing (sometimes riboflavin—vitamin B2).

Iron is efficiently recycled in the body, with some loss occurring through sweating, or for women, through menstruation. The combination of excess iron loss and decreased intake may produce a serious deficiency.

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