The best time to take iron supplements is on an empty stomach, typically 1-2 hours before or after meals. Research shows that iron absorption is significantly higher when taken without food. However, if you experience stomach upset, you can take it with food, but avoid these items:
- Calcium-rich foods and supplements
- Tea and coffee
- Whole grain cereals (high in phytates)
To enhance absorption, take iron with vitamin C-rich foods or a vitamin C supplement. Morning consumption is often recommended as iron supplements can sometimes cause energy increases that might affect sleep if taken late in the day.
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Last Updated: September 1, 2025
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