Which statement best describes the effect of antioxidants during intense exercise?

Antioxidants play a significant role in protecting the body from oxidative stress, particularly during intense exercise. Intense physical activity can lead to increased production of reactive oxygen species (ROS), which can damage cells and tissues. In this context, antioxidants help to neutralize these harmful molecules, thus mitigating oxidative stress and potentially reducing cellular damage.

By combating oxidative stress, antioxidants can contribute to improved recovery, decreased inflammation, and overall better performance outcomes. This is especially important for athletes or individuals engaging in high-intensity workouts, as it helps maintain cellular integrity and supports metabolic processes.

The other choices do not accurately reflect the role of antioxidants during intense exercise. They do not decrease metabolism or increase fatigue; instead, they may help enhance performance and recovery. Additionally, antioxidants are not known to hinder performance but rather support the body in dealing with the stresses imposed by exercise.