While iron supplements are generally safe, they can cause several side effects. Research shows common side effects include:
- Gastrointestinal issues: Constipation, nausea, stomach pain
- Stool changes: Black or dark stools
- Temporary tooth staining: Can be prevented by using a straw and maintaining good oral hygiene
To minimize side effects, start with a lower dose and gradually increase it. Taking supplements with food can help reduce stomach issues, though this may decrease absorption. If side effects persist, consult your healthcare provider about switching to a different form of iron.
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Last Updated: September 13, 2025
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