4. Dizziness and headache
Iron deficiency can cause headaches or migraines. This is due to insufficient oxygen supply to the brain, which can cause swelling of the blood vessels, headaches, or migraines.
Also, people with iron deficiency may have mild headaches and dizziness. When the hemoglobin level drops or gradually decreases, the body becomes desperate for oxygen and develops these physical symptoms. Dizziness is caused by a lack of oxygen to the brain or by low blood pressure caused by a lack of oxygen to the heart and blood vessels.
