Mung bean porridge, lotus seed porridge, lotus leaf porridge and preserved egg porridge are light in taste, high in moisture and rich in vitamins, which can not only clear away heat and prevent heatstroke, but also astringe sweat and rehydrate, and also stimulate appetite. . However, "light" does not mean vegetarian. People's nutritional needs in summer are not less than those in winter, so high-quality protein should eat some fish, shrimp, lean meat, chickens and ducks, eggs, milk and bean products. Bitter weeds are rich in alkaloids, amino acids, bittersweet, vitamins and minerals, and have the functions of relieving summer heat, relieving fever, relieving restlessness, refreshing and invigorating the stomach. They can nourish the heart, clear fire, strengthen the spleen and dry dampness, thus achieving the purpose of balancing body functions. Common bitter vegetables are bitter gourd, bitter vegetable and lotus leaf. Bitter gourd will be more complete in nutrient intake and lose weight when eaten raw, but eating 2-3 slices raw every day will be effective. But people with spleen deficiency and stomach cold should not eat it raw. Pregnant women should eat carefully. Garlic, onion, leek, scallion, chive, green garlic, garlic sprout, etc. These vegetables are rich in broad-spectrum fungicides, which can kill and inhibit various cocci, bacilli, fungi and viruses. Among them, the most prominent role is garlic. Raw garlic can better play its sterilization and disease prevention functions.