Tomatoes are also called tomatoes, plums and persimmons. Originated in South America, it is said that it was brought to Europe by the British Duke during his trip in the16th century, or it may have spread to China from the west, so it is called tomato. Tomatoes can be eaten raw, fried, juiced and made into sauce, and are called "fruits in vegetables" all over the world. According to the dietotherapy theory of traditional Chinese medicine, tomatoes are slightly cold, sweet and sour; Enter the spleen, stomach and liver meridians. It can nourish yin, promote fluid production, strengthen spleen and stomach, calm liver and clear heat, and is suitable for anorexia, stomach heat and thirst caused by fever and yin injury. Modern medical tests show that tomatoes are rich in vitamin C. The content of vitamin C per100g of tomatoes is 1 1 mg, which is 2.5 times that of apples, and the content of vitamin PP is among the best in fruits and vegetables. In addition, it also contains 0.3 1 mg of carotene. Besides calcium, phosphorus and iron, there are more apples and oranges. There are different opinions about the dietary anti-cancer effect of tomatoes. The Hong Kong Express reported that lycopene can protect people from carcinogens in automobile exhaust and cigarettes. Lycopene is also an antioxidant, which can inhibit some carcinogenic oxygen free radicals and prevent cancer. Tomatoes also contain glutathione, which can delay cell aging and reduce the incidence of malignant tumors. Foreign research also found that tomato extract can reduce the specific antigen PSA of patients with prostate cancer, and it is beneficial for patients with prostate cancer to eat more tomatoes. According to the book Luchuan Mucao, tomatoes have the functions of invigorating stomach, promoting digestion and treating anorexia, which may be related to malic acid and citric acid. Malic acid and citric acid can stimulate appetite, promote gastric acid secretion, help digestion and enhance gastrointestinal absorption. People who have poor digestive function or eat more meat and greasy food should eat tomatoes after meals. Obese people and hypercholesterolemia people develop the habit of eating tomatoes regularly, which is beneficial to lose weight and fat, which is also the credit of fruit acid contained in tomatoes. Tomato also contains lycopene, which can obviously reduce the increase of vascular permeability caused by histamine in Maoxiang field and has anti-inflammatory effect. In addition, tomatoes are also rich in riboflavin, ascorbic acid, vitamin A, vitamin K and so on. It is beneficial to the prevention and treatment of gingival bleeding and oral ulcer. Examples of tomatoes for dietotherapy are as follows: Ziyin Shengjin Prescription: used for dry mouth and throat, loss of appetite, upset and thirsty, red tongue and little fur caused by insufficient stomach yin or radiotherapy of head and neck. Wash 200 grams of tomatoes, blanch them with boiling water, peel them, mash them, add some rock sugar, and put them in the refrigerator for cooling. You can always eat it after meals. Wei Qing Jianpi Prescription: It is used for stomach fullness, hiccup, anorexia, halitosis, polydipsia and other symptoms caused by stomach heat or overeating. Bitter gourd 100g, blanch in boiling water, slice, blanch in vegetable oil a little, stir-fry bitter gourd and tomato, slice the crescent moon until cooked, add salt, seasoning and monosodium glutamate, and add minced garlic at the same time, and put it into the pot after frying. Cooling blood and stopping bleeding prescription: used for oral ulcer, gingival swelling and pain and mucosal bleeding caused by blood heat, toxic fire or radiotherapy in head and neck. 100g sliced fresh lotus root, 50g black fungus soaked in water, boiled in clear water in a casserole for about half an hour, put in 200g sliced tomatoes, add seasoning such as salt and monosodium glutamate as appropriate, and cook for10min, and beat one egg into soup. Immature green tomatoes contain solanine, which will be poisoned if eaten more, so immature people should not eat them. Tomatoes are cold, and spleen and stomach deficiency are not suitable. Raw tomatoes are best eaten after meals, so as not to stimulate the gastrointestinal tract on an empty stomach, and to avoid combining with gastric acid to form indigestible substances that cause upper abdominal discomfort. It has also been suggested that tomatoes should not be eaten with cucumbers, lest the ingredients contained in cucumbers destroy the vitamins in tomatoes.