Ferritin has a very low sensitivity in pregnancy and by using a concentration of <15μg/L as the only marker of iron deficiency without a complementary measurement of transferrin saturation (TSAT), we may have missed a huge proportion of the iron-deficient patients and thus the prevalence of IDA obtained from this study (12.3%) may have been a gross underestimation [29]. Here, TF is linked to nutritional disorder.