What is recommended for restoring hydration after continuous endurance activity lasting 2 hours?

Restoring hydration after continuous endurance activity that lasts for two hours requires a comprehensive approach to replenish not just fluids but also important electrolytes and carbohydrates. During prolonged physical activity, particularly in endurance events, the body loses water and electrolytes through sweat. Sodium is a key electrolyte that is lost, and its restoration is essential for rehydration and maintaining fluid balance, especially in activities that extend beyond 60 minutes.

Carbohydrates are also critical for refueling energy stores in the muscles and liver, which become depleted during endurance activities. While protein plays a role in muscle recovery and repair, it is not as crucial in the immediate rehydration process after two hours of sustained activity.

Thus, the combination of fluids, sodium, and carbohydrates effectively addresses both hydration and energy replenishment needs, making it the most comprehensive choice for recovery after such endurance activities.