Steamed bread and bread can guarantee the supply of starch, and milk and eggs can guarantee protein. Don't eat too greasy to avoid stomach upset and thirst. Red bull can be drunk before the game, but not at breakfast, because the caffeine in it will stimulate the stomach and affect digestion. Chocolate must be eaten, about twenty minutes before the game. If you are participating in a long-distance race, you can drink some salt water properly before the race. But if it is an explosive event, such as sprint, don't drink too much water. Drinking too much will affect your excitement and make you unable to get excited during the game.