The comparison of children according to their Hb-level showed a significant decrease in the mean count of FG consumed by severity of the level of anemia (p = 0.035), hereby the count of FG was significantly different for the groups severe vs. mild anemia (p = 0.028), and moderate vs. mild anemia (p = 0.010). The gene discussed is GSTM1; the disease is anemia (phenotype).