First of all, you should consume a small amount of food before exercising. "It is very unfavorable to human health to start exercising on an empty stomach and just after eating." Consuming a small amount of food half an hour before exercise can avoid digestive disorders caused by physical activity and also enhance the effect of exercise. If it is a morning exercise, breakfast must avoid difficult to digest food, it is best to consume a small amount of dairy products, cereals, fruits, drinks.

Secondly, water should be replenished in time during exercise. If the exercise time is less than 1 hour, every 15 minutes should drink 150 ml to 300 ml of water; if the exercise time in 1 to 3 hours, should be timely to the body to replenish sugar water to avoid hypoglycemia. In addition, exercise must not drink ice water, because drinking ice water during strenuous exercise will cause problems in the digestive system.

Finally, it is not advisable to eat acidic foods such as fish and meat after exercise. After exercise, the body's sugar, fat, protein is a large number of decomposition, producing lactic acid, phosphoric acid and other acidic substances, these acidic substances will stimulate the body's tissues and organs, so that people feel muscles, joints, soreness and mental fatigue. Fish and meat and other foods belong to the acidic food, exercise that is consumed after these acidic foods, will make the body fluids more acidic, not conducive to muscle, joint soreness and fatigue of the body to lift. Experts suggest that after exercise should eat more fruits, vegetables, soy products and other alkaline foods to maintain the acid-base balance in the body, so as to achieve the elimination of exercise fatigue, to maintain the purpose of health.