Recent analyses from the International Fetal and Newborn Growth Consortium for the 21st Century and Biomarkers Reflecting Inflammation and Nutritional Determinants of Anemia (BRINDA) group also report Hb distributions where the 5th percentile was lower than the current WHO cutoffs to define anemia in apparently healthy pregnant women, children, and nonpregnant women of reproductive age [56,57]. Here, GSTM1 is linked to anemia.