How can increased vitamin C intake benefit athletes?

Increased vitamin C intake can benefit athletes primarily by potentially preventing upper respiratory infections. Athletes often experience a temporary decrease in immune function after intense physical activity, which can make them susceptible to illnesses, especially upper respiratory infections. Studies suggest that adequate vitamin C intake may enhance immune responses and contribute to a lower incidence of these infections in athletes.

Vitamin C plays a critical role in supporting the immune system by aiding in the function of various immune cells and acting as an antioxidant. This might help mitigate some of the oxidative stress associated with strenuous exercise, thereby bolstering an athlete's overall immune health and reducing the likelihood of illness.

Other options, while they may relate to beneficial aspects of nutrition for athletes, do not align as closely with the specific benefits of vitamin C. For instance, while vitamin C has been studied in the context of muscle soreness, its direct effects on soreness are not as pronounced as its immune support role. Similarly, there is limited evidence to suggest that vitamin C directly increases protein synthesis or plays a role in improving hydration status. Thus, the most supported benefit of increased vitamin C intake in athletes is its potential to help prevent upper respiratory infections.