The hot summer is gradually coming, there are many children in the hot summer meal quantity significantly decreased, weight does not increase or reduce, this is mainly because the summer temperature is high, the body through sweating to disperse the body heat to regulate the role of body temperature. When the skin is dissipating heat, the blood vessels are in a dilated state, and more blood flows through the skin, while the blood supply to the gastrointestinal tract and other internal organs is relatively reduced, resulting in a decrease in the activity of the gastrointestinal tract and the secretion of digestive juices, leading to a decrease in appetite. Combined with the hot and muggy weather, poor rest and sleep for children can affect the function of the gastrointestinal tract. Therefore, to ensure the healthy growth of children in summer, it is necessary to arrange the diet and nutrition of children from the following aspects in view of the characteristics of summer. As children’s digestive and absorption functions are poor, it is advisable for children to eat light, easily digestible and less greasy food in summer, but milk, eggs, lean meat, tofu and other high-quality protein should be sufficient supply, but also eat more vegetables and fruits containing vitamins, such as cucumber, tomatoes, lettuce, lentils, winter melon, etc.. Adding some balsamic vinegar to the dishes can increase the appetite, and adding some garlic puree when mixing cold dishes can be cool and delicious, and can prevent intestinal infectious diseases. In addition, attention should be paid to improving the quality of food preparation, both nutritious, but also pay attention to the color, taste, fragrance, shape of food, changing the variety of patterns to enhance the appetite of children, so that children eat tasty, but also rich in nutrients. Second, eat less cold drinks Cold drinks can make people thirsty, eliminate boredom, refreshment, but also prevent heat stroke, but improper drinking, it is easy to get sick. Some parents are obsessed with meeting the needs of children, not restrained children eat cold drinks, the result affects the health of children, especially for children’s gastrointestinal function more. Because of the weakness of the spleen and stomach, the gastrointestinal mucosa is relatively delicate, sensitive to hot and cold stimuli, if often over-eating cold drinks, so that the gastrointestinal tract is subject to lasting stimulation, can affect the normal secretion of gastric juice and normal peristalsis of the gastrointestinal, thus causing indigestion, loss of appetite, abdominal pain, diarrhea. At the same time, due to cold stimulation, intestinal peristalsis increased, food in the small intestine to shorten the residence time, poor digestion, the absorption of nutrients is affected, which is very detrimental to the health of children. In addition, the health standards of some cold drinks are not qualified, can also cause the occurrence of gastrointestinal diseases, so even in the summer do not eat too much cold drinks. Third, drinking water should be a small number of times in summer sweat, the body lost more water, we should pay attention to timely replenishment to meet the needs of human metabolism. The loss of water in the body is gradual, water loss will stimulate the central nervous system thirst. Therefore, do not wait until you are thirsty to drink enough, a large amount of water, will dilute the stomach acid, not conducive to digestion of food and sterilization. Hydration should be a small number of times, to warm water is good, try to drink less carbonated beverages, these drinks are not high nutritional value, and most contain sugar, flavors, colors or added preservatives, stabilizers, caffeine, etc., should not let children drink more. It is best to drink homemade beverages, such as red beans, green beans boiled water with the right amount of sugar, both to quench thirst and health, or fresh oranges, oranges, apples, pears, watermelon juice plus cool boiled water diluted to drink, not only to quench thirst, increase nutrition, but also to avoid ingestion of additives to cause harm to children.