Common signs of iron deficiency include:
- Unusual fatigue and weakness
- Pale skin and brittle nails
- Shortness of breath
- Headaches and dizziness
- Cold hands and feet
According to a 2018 study, iron deficiency affects up to 2 billion people worldwide, making it the most common nutritional deficiency. If you experience these symptoms, especially if you’re in a high-risk group like menstruating women or vegetarians, consult your healthcare provider for blood tests to check your iron levels.
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Last Updated: September 27, 2025
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