Carbohydrates
A diet rich in carbohydrates increases both endurance and intermittent high-intensity performance because of the extra store of carbohydrates in the muscles and liver, called glycogen. It is well documented that athletes need to replenish carbohydrate stores in the body. Consuming carbohydrates during workouts lasting over one hour can also benefit performance and delay onset of fatigue. Studies have shown that athletes who participate in intermittent sports, such as basketball and soccer, should also focus on consuming more carbohydrates during training and competition.