Nearly 1 in 3 US adults may have an iron deficiency, study suggests CNNIron deficiency could be impacting almost a third of American adults, Boston hospital’s study says CBS Boston1 in 3 adults suffers from an iron deficiency, study finds — look for these 7 symptoms New York Post Iron deficiency may affect nearly 1 in 3 Americans, new study finds NBC NewsAbsolute, Functional Iron Deficiency Affects Large Proportion of US Adults MD Magazine