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Should I take an iron supplement if I donate blood?

Dariush Mozaffarian, MD
Internal Medicine
When you lose blood, you lose iron, too. If you are a regular blood donor, you may need extra iron: an estimated 3 to 4 mg more per day for each unit of blood you donate during the course of a year. Talk with your doctor about this first to be safe, though.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.