Carbohydrates play a crucial role in a workout regimen as they serve as the primary source of energy for high-intensity workouts. Consuming adequate carbs before and after exercise replenishes glycogen stores in muscles and the liver, which are vital for sustained performance. They also support recovery by facilitating the transport of nutrients to muscle cells. Including complex carbohydrates like whole grains, fruits, and vegetables in the diet ensures athletes maintain optimal energy levels and enhance overall exercise performance.