Severity was assessed through concentration of Hb in blood, revealing that 43% of participants had severe anemia, with the majority (36%) belonging to the low‐ and middle‐income class [24].The observed disparity in the prevalence of IDA may be attributed to differences in socioeconomic status across South Africa, Lahore, and Jordan, as these factors can significantly influence health outcomes. This evidence concerns the gene GSTM1 and anemia (phenotype).