Anemia is defined as a decrease in the concentration of hemoglobin (HGB) and/or the absolute number of red blood cells (RBCs), resulting in an inadequate supply of physiological requirements, and its common diagnostic method is the assessment of HGB levels [5], in which the normal values are ≥130 g/L in men and 120 g/L in women [6]. This evidence concerns the gene CYGB and anemia (phenotype).