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Can You Take Iron and Zinc Together?
Iron supplements of 25 mg or more taken at the same time as zinc supplements can lower zinc absorption and blood zinc.[1]
Based on NIH Office of Dietary Supplements — Zinc fact sheet · Updated October 10, 2026
Iron supplements taken with zinc reduce zinc absorption[1]
Supplements with 25 mg of iron or more, taken at the same time as a zinc supplement, can lower zinc absorption and blood zinc.
Iron supplements of 25 mg or more taken at the same time as zinc supplements can lower zinc absorption.
Source [1]Zinc: Fact Sheet for Health Professionals. NIH Office of Dietary Supplements. (ods.od.nih.gov)
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- Do Whole Grains and Beans Block Zinc?Phytate in grains and legumes lowers zinc absorption; soaking beans and grains before cooking and fermented foods may help, and animal zinc sources absorb better.
- Do You Need Copper With Zinc?Zinc at 50 mg a day or more for weeks can interfere with copper absorption and lower copper status.
- Can You Take Magnesium and Zinc Together?One study found very high zinc supplement doses, 142 mg a day, can interfere with magnesium absorption and magnesium balance.
- Do Iron and Manganese Compete?They are linked: iron deficiency raises manganese absorption and can make manganese toxicity worse.
- Does Vitamin A Help Iron?Vitamin A is needed to mobilise iron, so if iron and vitamin A are both short, address both.
- Does Riboflavin (Vitamin B2) Help Iron?Riboflavin is needed to use iron, so check riboflavin sources such as dairy, eggs and fortified grains when iron is short.
Sources
- Zinc: Fact Sheet for Health Professionals. NIH Office of Dietary Supplements. ods.od.nih.gov
This page is general information from the cited sources, not medical advice. If you take prescription medication, are pregnant, or manage a health condition, check supplement changes with a pharmacist or doctor.