Antioxidants combat oxidative stress in athletes by neutralizing free radicals produced during intense physical activity. High levels of oxygen consumption during workouts lead to increased reactive oxygen species, which can damage cells and muscles. By consuming antioxidants from sources like fruits and vegetables, athletes can mitigate this damage, promoting muscle recovery and reducing fatigue. Additionally, these compounds bolster the immune system and support overall health, allowing athletes to train harder and more effectively without succumbing to illness or injury.