Summer is a season of abundant fruits. Litchi, longan, watermelon, banana, pear, imported grapefruit, apple and so on. Although we should eat more fruits, according to Chinese medicine, people's physique is divided into cold, heat, deficiency and excess. Fruit also has the nature of fruit. If you are not careful, eating fruit by mistake will also make people uncomfortable. Fruit attributes are indeed related to physical fitness. When it comes to food properties, Chinese medicine has the so-called "four qi". This means that when food enters the body, it will produce "cold, hot, warm and cold" effects. If it is neither warm nor hot, neither cold nor cold, it belongs to "Ping". Therefore, every kind of fruit has its own "personality" when it enters the human body. Traditional Chinese medicine emphasizes the balance and harmony between yin and yang. People with hot constitution should eat more cold food. People with cold constitution should naturally eat more warm food, and the principle of eating fruit is the same. At the same time, topography and climate will also affect physiology and diet. For example, in subtropical areas, it is difficult to heat up in midsummer. Affected by hot weather and geothermal energy, people often have headaches, body heat, thirst and upset. In order to achieve balance, it is best to eat some cold food. Western medicine doesn't pay much attention to physique and food attributes. If the patient eats some fruit and feels uncomfortable, it means that he is not suitable and should be avoided. In the face of many people's doubts, some experts believe that the hot fruit mentioned by Chinese medicine refers to the fruit with high calorie density and high sugar content. After eating these fruits, the phosphorylation of glucose in the liver is accelerated, the synthesis of liver sugar is increased, the glycolysis reaction is increased, the ratio of insulin to glucagon is increased, the synthesis of fatty acids is improved, and the synthesis of triglycerides is also improved. When the liver is full of fat and sugar to be sent out, it is easy to get angry, and the body energy increases, so it is "hot". On the contrary, fruits with low calorie density and rich fiber, but low fat and sugar, are cold. If you eat this fruit, fiber and water will occupy the gastrointestinal space, making people unable to eat other nutritious foods. People who eat too much will become more and more listless, weak, more and more afraid of cold and weak. People with adequate nutrition should have no problem eating any fruit as long as they don't overdo it. Once the physical condition is not ideal, such as deficiency and cold constitution with insufficient calories in the body, eating cool fruit will be uncomfortable. Eating fruit in summer pays attention to science. People with a bad stomach should never eat iced fruit. It is best to eat more cold or warm fruits, not too sweet or too sour. Cool fruits include pears (eat less if you have a bad stomach) and bananas (don't eat on an empty stomach), while warm fruits include apples (the best fruit anyone can eat, with super nutrition), digestible melons, and pears and apples are also good. However, in TCM syndrome differentiation, patients with deficiency-cold constitution, chronic enteritis, duodenal ulcer, or "stomach cold"-gastritis and gastric ulcer, had better eat less cold foods such as watermelon and cantaloupe. Mango is delicious, but some people can't touch it because it will be allergic and itchy. The doctor pointed out that mango skin contains histamine, which is easy to cause allergies. Theoretically, mango belongs to hair. People with infectious diseases, skin diseases and inflammatory symptoms will induce diseases or aggravate their conditions if they eat "Mao". However, according to the classification, mango pulp is cool, which has the functions of promoting fluid production to quench thirst, benefiting stomach to stop vomiting, diuresis to stop cough, and can relieve discomfort for people who are prone to motion sickness and seasickness. There are many kinds of fruits in summer, not only strawberries and pineapples with pleasant colors, but also watermelons and peaches with delicious juice. What are the differences in nutritional components of various fruits? What fruit is the best to eat in summer? Nutritional immunologists believe that the nutritional value and medicinal value of each fruit are different. Buying fruit in summer can achieve the effect of reproducing nutrients. There is a saying in Beijing that peaches nourish people and apricots hurt people. Is this sentence scientific from the perspective of nutritional immunology? Dr. Chen Zhaofei, an expert in nutritional immunology, said that peaches are rich in vitamins, minerals and fruit acids, and their iron content ranks first among fruits. Iron is the main raw material for human hematopoiesis, which is quite beneficial to health and plays an important role in many herbs. Almonds contain citric acid, malic acid and beta carotene, which are mainly used for reducing qi, relieving cough and asthma, and relaxing bowels. However, "Compendium of Materia Medica" has already stated that "eating too much raw food hurts the muscles and bones". Eat watermelon in summer, don't take medicine. There is a proverb in our country: eat watermelon in summer, but don't catch drugs. It shows that watermelon is most suitable for summer summer. Watermelon is rich in vitamins A, B 1, B2, C, glucose, sucrose, fructose, malic acid, glutamic acid and arginine. It has the effects of clearing away heat, relieving summer heat, inducing diuresis and lowering blood pressure, and has certain auxiliary effects on high fever, thirst, summer sweat, nephritis, oliguria and hypertension. Watermelon is good, but you should also pay attention to eating watermelon. Chinese medicine experts believe that watermelon belongs to cold food and is easy to hurt the spleen and stomach. Therefore, people with spleen and stomach weakness, chronic enteritis, gastritis and duodenal ulcer or loose stool had better eat less. Normal people should not eat more, otherwise it will damage the spleen and stomach and cause indigestion or diarrhea. It should be reminded that patients with cold and fever in summer often use watermelon to replenish water to reduce fever, but because it is a sweet and cold food, it is not suitable for colds and early colds, especially those with symptoms such as chills and sweating. Fruit basket is a treasure house of palace culture that you can get at your side. Dr. Chen Zhaofei said that the fruit basket is a treasure house of nutrition that you can get at your fingertips. Her favorite fruits are mainly oranges, papaya, peaches, pineapples, strawberries, grapes, bananas, apples and so on. Dr. Chen also gave an example of its nutritional efficacy. Limonene has anticancer effect. Citrus fruits can moisten the lungs and regulate qi. Fresh orange juice contains a variety of creatine and vitamins, which is helpful to human metabolism, whitening and has many health care effects. The white reticular silk on the surface of orange pulp contains vitamin P, which can prevent and treat hypertension and has expectorant effect. There is a famous essential oil called limonene essential oil, which is the most important part of most oranges. At present, studies show that limonene has anti-cancer effect. Papaya can treat protein's digestive disorder. Papaya is not only a delicious fruit, but also has medical functions. Papaya contains an important digestive enzyme called papaya, which can decompose protein food into digestible state, and can dissolve up to 35 times of its own lean meat. This is why people use papaya to treat protein's digestive disorders. protein is the most abundant in papaya tree's leaves and immature papaya peels. Enzymes in pineapple can also decompose protein pineapple. Every 100g of fruit contains as much as 30mg of vitamin C and is rich in water. Its pulp, like papaya, contains an enzyme that can decompose protein, so it can soften the meat and dissolve blood clots. Strawberry juice can relieve sunburn pain. Strawberry is rich in vitamins C, B, calcium, phosphorus and potassium, and it still occupies a place in plant medicine. After boiling, their leaves can be used as astringents and can be used to treat diarrhea, fever, oral ulcers and gum diseases. In addition, strawberry juice is also a beauty product, which used to be used by girls to relieve the pain caused by sun exposure. Grape antioxidants Remember that children don't spit seeds when they eat grapes. Mother is always afraid that grape seeds will take root and sprout from her stomach and grow vines. In fact, the antioxidant effect of grape seed is not only 20 times that of vitamin C, but also 50 times that of vitamin E. Grape seed contains a lot of OPC antioxidants. OPC is a powerful flavonoid, which mainly exists in dry epidermis and seeds. Red grape seed, especially OPC, is an effective source, which is the potential key to increase the antioxidant activity of Li A, which can protect immune oxidative damage and delay the aging process. Banana is one of the oldest fruits of human beings, with high nutritional value and is the source of natural potassium. It can inhibit sodium which causes hypertension and cardiovascular diseases, and maintain normal blood pressure and heart function. It is also rich in vitamin B6, which can keep people away from depression, and magnesium, a mineral that can resist stress. It is also a super source of tryptophan, an essential amino acid. Together with vitamin B6, nicotinic acid and magnesium, it is the main raw material for human body to make serotonin, which has the functions of anti-depression, sedation and sleep.