The Centers for Disease Control and Prevention does not recommend race-adjusted thresholds to define anemia.

Competing Interests: Conflict of interest MEC and KSS were 2 of the CDC staff who prepared or collaborated on the 1998 iron deficiency recommendations publication [3]. GMB was a member of the CDC expert panel convened in April 1994. There was no funding used for this letter to the editor. All other authors report no conflicts of interest. The findings and conclusions in this letter are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention or the US Department of Agriculture.