Aya Ishibashi is Graduate Student in Sport and Health Science of Ritsumeikan University, and her research manuscript was accepted and published in The Journal of Nutrients, which collaborated with Professor Kazushige Goto. The study revealed that effect of three consecutive days of endurance training (twice daily) on the hepcidin level, iron regulated hormone. Subjects were assigned to either an iron treatment group or a placebo group. On days 4, the iron treatment group showed significantly higher hepcidin level compared with day1. The present findings may suggest even a moderate dose of iron supplementation during endurance training may not be a recommendable treatment to improve physical condition in athletes.

Aya Ishibashi, Naho Maeda, Akiko Kamei, Kazushige Goto. Iron Supplementation during Three Consecutive

Days of Endurance Training Augmented Hepcidin Levels. Nutrients. 2017, 9, 820.