After swimming, you will lose a lot of water and some trace elements, such as sodium, potassium and calcium. You should replenish water first, drink mineral water or boiled water, or drink light salt water or sports drinks. Drink warm water. Drinking cold water after swimming is easy to cause diarrhea. Then you can eat some fruits, such as bananas, apples and cucumbers, and try not to be too sweet, such as watermelons, lychees and longan. After swimming, the body's ability to absorb food is enhanced, which is twice as much as when you don't exercise at ordinary times. So you can't eat too sweet food.
After swimming, before dinner, you can eat some coarse grain bread, or corn and sweet potato foods, which are high in crude fiber and can relieve hunger, or you can drink it with a cup of milk oatmeal. This can relieve hunger and avoid eating too much at dinner, which is mainly vegetables, with a small amount of meat and less staple food. Avoid frying food, stir-fry with little oil, and drink a bowl of soup before meals, such as spinach soup and cucumber egg soup, which is appetizing and nutritious.
After swimming, blood will flow to the muscles of the limbs, help muscle repair and supplement nutrition. There is not enough blood in the gastrointestinal tract, so you should eat some digestible foods, such as vegetable and fruit salad. Choose your favorite vegetables and fruits that can be eaten raw and mix with a little salad dressing. Staple foods should also be easy to digest, such as a small amount of steamed bread and rice.
In short, you should eat reasonably after swimming and try to give priority to light and digestible food.