Are you running short on iron?

(HealthDay)—Could you—or your teenage daughter—have an iron deficiency and not know it? If you’re getting enough sleep, but still feel tired, running low on iron could be the problem.

Iron is our most common nutrient shortfall. A serious deficiency can lead to anemia. That’s when you have fewer red blood cells than normal or when those cells don’t have enough hemoglobin, a protein that carries oxygen throughout the body. A variety of symptoms can signal a problem.

Signs of Iron Deficiency

  • Fatigue
  • Pallor
  • Headaches and/or feeling dizzy
  • Weakness

If you’re feeling tired or have iron-deficiency risk factors like being overweight or a vegetarian, ask your doctor about getting tested to see if you need to boost iron through diet or would benefit from taking iron supplements.

Both iron deficiency and anemia can result from menstrual blood loss, which is why the U.S. Centers for Disease Control and Prevention recommends yearly tests for teenage girls who experience heavy periods.

A note on testing: While a complete blood count test can detect anemia, it may not pick up an iron deficiency. That requires a separate blood test to measure the protein ferritin. If you have risk factors, having this test can catch a deficiency before it progresses to anemia.

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