1, timely supplement salt and water. After fitness exercise, it is necessary to replenish inorganic salts and water lost during fitness in time. The best way to replenish water is to drink slowly with a small mouth, preferably warm water. It is recommended to drink light salt water, and it is undeniable that sports drinks are also recommended.

2. Carbohydrate is essential. Sufficient carbohydrates should be supplemented before and after fitness to ensure the storage of glycogen in the body, provide energy for the human body, maintain the blood sugar level in the body, and prevent muscles from being broken down. Cereals, vegetables and fruits are all rich in carbohydrates.

3. Eat more protein. Within 90 minutes after body-building exercise, the human body has the strongest demand for protein, which is the best opportunity to supplement protein and plays an important role in muscle growth. Eggs, lean meat, fish and milk are all rich in protein.