Timing matters significantly for iron absorption. Research from the American Journal of Clinical Nutrition suggests taking iron supplements:
- On an empty stomach or 1 hour before meals
- With vitamin C-rich foods to enhance absorption
- Away from calcium, coffee, tea, and antacids (wait 2 hours)
Morning consumption is often recommended, but consistency is more important than specific timing. If stomach upset occurs, taking with a small amount of food is acceptable, though this may reduce absorption by 40-50%.
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Last Updated: October 11, 2025
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