Natsue Koikawa,Isao Nagaoka,Masahiro Yamaguchi,Hirokazu Hamano,Koji Yamauchi, and Keisuke Sawaki, Bioscience, Biotechnology, and Biochemistry72(4):931-935,2008,5

This study investigated whether intake of lactoferrin (LF) would improve or prevent anemia in female long distance runners who were training during the summer season and had a high risk of iron-deficiency anemia. These observations suggest the possibility that intake of LF increases the absorption and utilization of iron and would be useful in the prevention of iron deficiency anemia among female long distance runners.