Respiratory infections not only affect the respiratory system, but also have adverse effects on the overall health status of children. During the infection period, most children will experience a decrease in appetite. According to traditional Chinese medicine theory, the qi and blood in the body are mainly used to fight against external pathogens, and there is not much power to digest too rich food. Therefore, a light diet is needed during illness. 01 Infants and young children should continue breastfeeding, and the introduction of new foods should be suspended. During the period of illness, infants and young children should continue breastfeeding. Breast milk can provide high-quality, comprehensive, sufficient, and suitable nutrients, reducing feeding intolerance during illness; Help infants strengthen their resistance, reduce the risk of developing other infectious diseases, and promote the maturation of their immune system. Continuing breastfeeding can also enhance intimate contact between mother and child and alleviate mother's anxiety. When infants and young children are sick, their resistance is low and their gastrointestinal function is disrupted. It is advisable to choose foods that have been eaten before and have no abnormal reactions for combination and pairing, and to temporarily suspend the introduction of new foods. The adapted food can be continued to be fed according to the baby's preferences. Children and adolescents should eat less meat and have a variety of foods. During illness, children and adolescents need to rest more and maintain sufficient energy and nutrient supply by carefully selecting food and designing recipes to enhance their body's resistance. Lightness is relative to fat, sweetness, and thick taste, which means that the taste of food should be light and not too greasy, sweet, or salty. Parents often use light cooking methods such as steaming, boiling, stewing, blanching, and mixing, and consume less fried, grilled, and pickled food. Parents can make vegetables and lean meat Congee, egg and vegetable noodle soup, vegetable and meat Wonton and other foods that are easy to digest and have a variety of food types, colors, and nutrients, which can not only improve appetite, but also ensure the supply of protein and energy. Avoid long-term consumption of monotonous foods, such as corn and sweet potatoes, which can partially replace rice and noodles, poultry and pork, and various eggs. During the period of illness, it is advisable to eat as little meat as possible, or eat lean meat with low fat in moderation, and avoid meat with high fat content such as fat and pork belly. Arrange three main meals in the morning, middle, and evening every day, and preschool children can have two additional meals. The interval between two main meals is 4-5 hours, and the interval between additional meals and main meals is 1.5-2 hours. Additional meals are arranged in the morning and afternoon respectively. 03 Adequate drinking water helps to cool down and dilute sputum during respiratory infections. Adequate drinking water can promote the body's metabolism, helping to cool down and dilute sputum. It is recommended to drink 600-800ml of water per day for ages 2-5, 800-1000ml of water per day for ages 6-10, 1100-1300ml of water per day for ages 11-13, and 1200-1400ml of water per day for ages 14-17. During the illness, it is also possible to increase the amount of water consumed appropriately. Drinking water should follow the principle of small, multiple, and slow drinking, and not wait until you are thirsty before drinking water. Choose plain water, avoid drinking all kinds of sugary drinks, and avoid taking medication with beverages, juices, etc. Eating snacks, biscuits, and pastries appropriately should be avoided. During illness, if your appetite is poor and your mood is not good, your child may like to eat some snacks. It is best to have a break of at least 1 hour between snacks and meals, and do not eat snacks before bedtime. You can choose a small amount of clean, hygienic, and nutritious food as snacks,