Research indicates that timing and food interactions significantly affect iron absorption. For optimal results:
- Take iron on an empty stomach, ideally 1 hour before or 2 hours after meals
- Pair with vitamin C-rich foods or supplements to enhance absorption
- Avoid taking with calcium supplements, dairy products, coffee, or tea
- Space doses throughout the day if taking multiple doses
If stomach upset occurs, you can take supplements with a small amount of food. While this may reduce absorption by 40-50%, it’s better than discontinuing the supplement due to side effects. Consider taking iron supplements before bed if you experience nausea.
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Last Updated: October 17, 2025
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