Conclusions
IRON DEFICIENCY
Co-ingestion of methionine and threonine with low doses of iron resulted in significantly increased hemoglobin level after a short intervention of 4 weeks compared with the ingestion of iron alone. Additionally, our analyses show that the observed increase in hemoglobin level was affected by the intervention, rather than from changes in dietary nutrient intake. Our results suggest that methionine and threonine effectively improve iron availability in young women, and that a combination supplementation with iron may help prevent and ameliorate iron deficiency.