Iron Supplements for Women: Complete Guide 2026
Iron deficiency affects 1 in 3 women of reproductive age. The right supplement and timing make all the difference.
Overview
This guide provides comprehensive, evidence-based information on iron supplements. Our team has reviewed the latest research to bring you actionable insights.
Frequently Asked Questions
What is the best form of iron supplement?
Iron bisglycinate (chelated iron) is best tolerated with fewer side effects. Ferrous sulfate is cheapest and most studied but causes more constipation and nausea.
When should I take iron supplements?
Take on an empty stomach, ideally 1 hour before or 2 hours after meals, with vitamin C (orange juice works). If it upsets your stomach, take with a small snack.
How long does it take for iron supplements to work?
You may feel more energy within 1-2 weeks. Iron stores (ferritin) typically normalize in 3-6 months of consistent supplementation. Complete the full course even if you feel better.