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Change in Total Body Iron (TBI) (mg) from pre-donation TBI at 7 post-donation visits from Day 3–8 to 24 weeks after donation (See Methods). Red lines and symbols represent donors randomized to oral iron supplements. Black lines and symbols represent donors randomized to no iron. Solid lines and diamonds indicate donors whose pre-donation ferritin was ≤26 ng/mL. Dotted lines and triangles represent donors whose pre-donation ferritin was > 26 ng/mL.
