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What is the recommended daily intake for iron?

Dariush Mozaffarian, MD
Internal Medicine
Because most of the body's iron circulates in the blood as part of hemoglobin, menstruating girls and women lose larger amounts of iron during their monthly periods, which is why iron deficiency is a common problem for women of childbearing age. Still, for women ages 31 to 50, the recommended daily amount of iron is only 18 mg. For adult men of any age and for women starting at age 50 (or whenever menstruation ends), 8 mg a day is enough. The tolerable upper intake level for iron is 45 mg a day.

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