Iron deficiency is a common concern amongst athletes but is it a commonly occurring problem in this group? I review iron metabolism, dietary sources and the evidence on how frequently iron deficiency is found in the athlete population. I also look at what is known about iron deficiency and athletic performance as well as whether or not there is any benefit to iron supplementation. Plus, an interview with former Olympic cross country skier Kris Freeman. Kris had tremendous success in a sport that is generally dominated by Europeans and he did it while being diagnosed and learning to manage type 1 diabetes. After his skiing career, Kris has turned to triathlon where he continues to have great success and is at the forefront of understanding his disease and how to manage it.