Iron and Iron Deficiency

Quick GuideThe 14 Most Common Causes of Fatigue

The 14 Most Common Causes of Fatigue

How much iron do I need?

If you have already been diagnosed with iron deficiency, talk to your doctor or healthcare provider about treatment. For healthy individuals, the Recommended Dietary Allowance (RDA) for iron is listed in the following table.

Recommended Dietary Allowance (RDA) for iron by age and sex.
Age/Group Life Stage Iron (mg/day)
Infants 0-6 months 0.27*
7-12 months 11
Children 1-3 years 7
4-8 years 10
Males 9-13 years 8
14-18 years 11
19-30 years 8
31-50 years 8
51-70 years 8
> 70 years 8
Females 9-13 years 8
14-18 years 15
19-30 years 18
31-50 years 18
51-70 years 8
>70 years 8
Pregnant Women 14-18 years 27
19-30 years 27
31-50 years 27
Lactating Women 14-18 years 10
19-30 years 9
31-50 years 9

*This value is an Adequate Intake (AI) value. AI is used when there is not enough information known to set a Recommended Dietary Allowance (RDA).

Source: Dietary Reference Intakes, Institute of Medicine, Food and Nutrition Board.*

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