Iron-deficiency anemia impairs physical performance because iron helps deliver the muscles' oxygen.

Name: Iron-deficiency anemia impairs physical performance because iron helps deliver the muscles' oxygen.
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Iron is necessary for the production of hemoglobin, a protein in red blood cells that carries oxygen. Without enough iron, the body cannot produce enough hemoglobin, which can lead to anemia. Anemia can impair physical performance because muscles need oxygen to function properly.

Iron-Deficiency Anemia Impairs Physical Performance Because Iron Helps Deliver the Muscles