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Can I Take Iron and Vitamin C Together? Absorption Synergy Explained

Vitamin C enhances iron absorption — a beneficial combination. Learn the optimal dosage and how to maximize iron absorption.

Quick Answer

Vitamin C enhances iron absorption (positive interaction).

Recommendation: Taking together is beneficial.

iron + vitamin c

Synergyabsorption inhibition

Vitamin C enhances iron absorption (positive interaction).

Tip: Taking together is beneficial.

Safe Dosage Comparison (5 Regional Standards)

Standardironvitamin c
US (FDA)18 / 45 mg
(RDA/UL)		90 / 2000 mg
(RDA/UL)
EU (EFSA)18 / 45 mg
(RDA/UL)		90 / 2000 mg
(RDA/UL)
AU (TGA)18 / 45 mg
(RDA/UL)		90 / 2000 mg
(RDA/UL)
CN (CNS)20 / 42 mg
(RDA/UL)		100 / 2000 mg
(RDA/UL)
JP (MHLW)10.5 / 50 mg
(RDA/UL)		100 / 2000 mg
(RDA/UL)

Values shown as RDA (Recommended Dietary Allowance) / UL (Tolerable Upper Intake Level). Sources: NIH, FDA, EFSA, FSANZ, CNS, MHLW.

Frequently Asked Questions

Should I take iron with vitamin C?

Yes. Vitamin C enhances non-heme iron absorption by 2-3 times. Take iron with orange juice or a vitamin C tablet.

Taking More Supplements?

This page only checks one pair. Use NutriAudit to check your full supplement stack for interactions, duplicates, and safe dosages.

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Not medical advice. Always consult a qualified healthcare professional for personal medical decisions.