Iron is a critical mineral for athletic performance, playing a vital role in the transport of oxygen throughout the body. It is central to the structure of hemoglobin, which carries oxygen in the blood to muscles and tissues. Adequate iron levels are necessary for sustaining energy and endurance during physical activity. Athletes, particularly endurance athletes and those on vegetarian or vegan diets, may be at greater risk of iron deficiency. Monitoring iron intake and considering supplementation when necessary can help optimize performance, reduce fatigue, and enhance overall athletic outcomes.