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Is Iron supplement Safe with Zinc supplement?

⚠️ HIGH SEVERITY
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Zinc supplement Iron supplement
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Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature

WHAT YOU NEED TO KNOW

Take zinc and iron supplements at least 2 hours apart. When both minerals are medically necessary (e.g., during pregnancy), use a combined prenatal formulation specifically designed to minimize this interaction, or consult your pharmacist for timing guidance.

Why this interaction occurs

At supplemental doses, zinc inhibits iron absorption and vice versa due to competition at DMT-1 and related apical membrane transporters. Studies in pregnant women demonstrated that concurrent iron and zinc supplementation reduced bioavailability of both minerals compared to individual supplementation.

Evidence

Evidence level: strong.

Reported safety data

The FDA’s adverse event reporting system (FAERS) has received 91,121 reports mentioning Zinc supplement. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Zinc supplement + supplement combination on this page.

FAERS reports are voluntary and cannot prove that a drug caused an event. Do not use report counts to assess the safety of this specific drug-supplement pair.

Frequently asked questions

Can I take Iron supplement with Zinc supplement?
Avoid unless your doctor or pharmacist directs otherwise. Take zinc and iron supplements at least 2 hours apart. When both minerals are medically necessary (e.g., during pregnancy), use a combined prenatal formulation specifically designed to minimize this interaction, or consult your pharmacist for timing guidance.
How long should I wait between Zinc supplement and Iron supplement?
Take zinc and iron supplements at least 2 hours apart. When both minerals are medically necessary (e.g., during pregnancy), use a combined prenatal formulation specifically designed to minimize this interaction, or consult your pharmacist for timing guidance.
Does Iron supplement affect how well Zinc supplement works?
At supplemental doses, zinc inhibits iron absorption and vice versa due to competition at DMT-1 and related apical membrane transporters. Studies in pregnant women demonstrated that concurrent iron and zinc supplementation reduced bioavailability of both minerals compared to individual supplementation.

Related interactions

Iron supplement and Calcium supplement Calcium supplement and Zinc supplement Copper supplement and Zinc supplement

All Iron supplement interactions →  ·  All Zinc supplement interactions →

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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.