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Iron deficiency anemia means that you have low red blood cells. Red blood cells carry oxygen and give you energy among other things. You know you have it when you get your hemoglobin checked (they prick your finger). It depends on the person, normally I think you have to take iron to fix it but as soon as you stop it will lower again. Unless it was just from a poor diet those past few days..

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13y ago

What else can I help you with?