Iron deficiency anemia is the world’s most common single-nutrient deficiency.

Iron is a mineral needed by our bodies. Iron is part of all cells and does many tasks in our bodies. One way is as part of the protein hemoglobin, which carries oxygen from our lungs throughout our bodies. Too little hemoglobin is called anemia. Iron also helps our muscles store and use oxygen.

Sally Robinson is a clinical professor of pediatrics at UTMB Children’s Hospital. This column isn’t intended to replace the advice of your child’s physician.

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