What is the primary function of carbohydrates in exercise?

The primary function of carbohydrates in exercise is to provide energy. During physical activity, the body requires a readily available source of fuel, and carbohydrates serve as one of the most efficient energy sources. When carbohydrates are consumed, they are broken down into glucose, which is utilized by the muscles during exercise.

In high-intensity activities, the body primarily relies on carbohydrates because they can be quickly converted into energy through glycolysis. This is essential for sustaining performance and delaying the onset of fatigue. Additionally, carbohydrates help replenish glycogen stores in the muscles, which is crucial for recovery following strenuous workouts and for maintaining endurance during prolonged exercise.

While carbohydrates play various roles in supporting overall health and performance, their primary and most critical function during exercise is to provide the energy necessary for optimal physical performance.