Maternal anemia (Hb <11 g/dL) of nutritional origin has been reported in Jordan [11], and early and mid-pregnancy anemia rates of 26% and 54%, respectively, have been reported from clinics operated by the United Nations Relief and Works Agency for Palestine Refugee in Near East (UNRWA) in the region [12]. The gene discussed is GSTM1; the disease is anemia (phenotype).