Inclusion Criteria:  Ferritin levels < 13 ng/ml, Hemoglobin levels between 8 g/dL and 11.9 g/dL, No plans to move during the duration of the study, Commitment not to become pregnant during the duration of the study, Signed informed consent.  Exclusion Criteria:  Pregnancy, Amenorrhea not related to pregnancy, Breastfeeding, Chronic diseases (active TB, HIV, cancer, asthma, liver disease, coronary heart disease, chronic renal disease), Hemoglobin levels < 8 g/dL, Bleeding in the 3 months prior to recruitment, Smoking, Inability to sign informed consent, Consumption of nutritional supplements.