MODERATE — Monitor Closely
🟡 USE CAUTION — Zinc and Iron may interact. Talk to your doctor before combining.
Evidence level: STRONG
Zinc and iron fight for absorption. Take at least 2 hours apart.
Zinc and iron compete for absorption via DMT1 transporters.
The interaction between Zinc and Iron is manageable with awareness. Talk to your doctor or pharmacist, especially if you notice any new or unusual symptoms after combining them.
Iron competes with most other minerals for absorption. Take iron on its own — ideally on an empty stomach with vitamin C (orange juice works) for maximum absorption. Take Zinc with a different meal, at least 2-3 hours apart from iron. Never take iron and calcium together — calcium reduces iron absorption by up to 60%.
Risk may increase with: older age, liver or kidney impairment, taking multiple medications, and higher doses of either substance.
Monitor for any new or unusual symptoms when starting this combination. Report changes to your healthcare provider.
Mention this combination at your next appointment. Ask: "Should I adjust timing or doses of Zinc and Iron?" Your doctor may want to monitor specific lab values.
Try spacing these supplements at least 4 hours apart or taking them at different meals. If the interaction involves absorption competition, alternating days may be more effective than simultaneous use.
Zinc and iron fight for absorption. Take at least 2 hours apart.
Iron competes with most other minerals for absorption. Take iron on its own — ideally on an empty stomach with vitamin C (orange juice works) for maximum absorption. Take Zinc with a different meal, at least 2-3 hours apart from iron. Never take iron and calcium together — calcium reduces iron absorption by up to 60%.
Monitor for any new or unusual symptoms when starting this combination. Report changes to your healthcare provider.
Try spacing these supplements at least 4 hours apart or taking them at different meals. If the interaction involves absorption competition, alternating days may be more effective than simultaneous use.
Mention this combination at your next appointment. Ask: "Should I adjust timing or doses of Zinc and Iron?" Your doctor may want to monitor specific lab values.
Or browse the full interaction database (121,000+ pairs).