The hot summer is the season of greatest physical exertion for the human body. Living and working in high-temperature environments inevitably affects the body's physiological functions and nutritional metabolism.
At this time, the body's demand for nutrients increases due to factors such as heavy sweating, loss of nitrogen, dehydration, and elevated body temperature.
First, the body's need for protein increases. This is because hot weather causes excessive sweating, and the loss of nitrogen, water, and the rise in body temperature can all lead to enhanced protein catabolism, thereby requiring an increased intake of protein. High temperatures can also speed up the body's metabolism, causing a significant loss of inorganic salts, trace elements, and water-soluble vitamins like Vitamin C, Vitamin B1, and Vitamin B2 through sweat. This increases the body's energy consumption, reducing its endurance and resistance. Therefore, it is essential to replenish water and nutrients promptly. The principle for nutritional supplementation is to focus on a diet that is light, refreshing, and stimulates the appetite. In meal planning, attention should be paid to the color, aroma, and flavor of food to enhance appetite. For example, one can appropriately consume more cold dishes, salted duck eggs, salted eggs, century eggs, bean products, sesame paste, mung beans, fresh vegetables, and fruits. Various beverages are indispensable in the summer. Additionally, adding a moderate amount of vinegar when cooking dishes not only enhances flavor but also has the effects of protecting Vitamin C, killing bacteria, and increasing appetite. Through proper diet, one can not only replenish the nutrient losses caused by heavy sweating but also effectively prevent intestinal diseases, while also helping to regulate body temperature and alleviate fatigue. Foods with heat-clearing and summer-heat-relieving properties include amaranth, water shield, Malantou, eggplant, fresh lotus root, mung bean sprouts, loofah, cucumber, winter melon, wax gourd, and watermelon. Special mention should be made of tomatoes and watermelon; consuming more of them in the summer can both quench thirst and provide nourishment. Furthermore, one should also choose foods like millet, beans, lean pork, animal liver, egg yolks, red dates, shiitake mushrooms, seaweed, and pears to replenish lost Vitamin C, Vitamin B1, Vitamin B2, and other nutrients.
For the elderly, summer diet should also involve consuming less greasy food and more light, clean foods. For frail elderly individuals, cold drinks and raw, cold fruits and vegetables should be avoided to prevent digestive dysfunction and illness.