Which micronutrient is specifically noted as important for athletes?

Iron is specifically noted as important for athletes due to its crucial role in oxygen transport and energy production within the body. Hemoglobin, the protein in red blood cells, relies on iron to bind oxygen and carry it from the lungs to the muscles and other tissues, which is essential for maintaining endurance and overall athletic performance. Athletes, particularly those involved in endurance sports or activities where iron loss can occur (such as through sweat or gastrointestinal bleeding), may be at risk for iron deficiency. This deficiency can lead to decreased athletic performance, increased fatigue, and impaired recovery. Therefore, maintaining adequate iron levels is vital for athletes to optimize their performance and prevent fatigue.

Other micronutrients mentioned may have important roles in hydration, electrolyte balance, and overall health, but iron's specific function in oxygen transportation ties it more directly to athletic performance.