Longan, also known as longan, is beneficial to intelligence and rich in nutrients. Its meat is sweet and moist. It has the effects of nourishing blood, nourishing the body, strengthening the spleen, nourishing the skin, and calming the mind. It is one of the delicious fruits. Many people like to eat longan because of its sweet and fragrant taste. But people may not know that the nutrients of longan are very diverse. Each 100 grams of pulp is rich in sugars, acids, vitamins A and B, and protein, in addition to 30 mg of calcium. Because it contains a large amount of trace elements that are beneficial to human health, the fruit longan has long been a good medicine, used to nourish the heart, calm the mind, and replenish qi and blood. According to data from my country's "Clinical Chinese Materia Medica", "Traditional Chinese Materia Medica", and Japan's "Department of Agricultural Technology", longan (100 grams of pulp) contains 12-23% of total sugar, 26.91% of glucose, 1.26% of tartaric acid, and 1.41% of protein. %, fat 0.45%, vitamin C 163.7 mg, vitamin K 196.6 mg, and vitamins B1, B2, P, etc. Dried fruit meat contains 74.6 grams of sugar per 100 grams, 0.4 grams of ash, 35 mg of iron, 2 mg of calcium, 110 mg of phosphorus, 1200 mg of potassium and other minerals, as well as a variety of amino acids, saponin, X-glycine, Tannins, choline, etc., are the sources of nourishing and strong qualities. Because longan has a certain beauty effect, fresh longan is very popular among some women who love beauty, and some women buy longan very frequently. However, relevant experts do not support the practice of these beauty-loving women. "A place with water and soil nourishes a person." If northern women want to maintain their beauty, it is best to choose some fruits produced in the north. In addition, eating fruits depends on their "properties". It is best to eat more cool fruits such as apples and pears. Longan is a warm and tonic fruit that can nourish blood and qi. People with weak constitutions and mothers who have just given birth can eat some longan, which is very beneficial to their physical recovery. However, if normal women eat too much longan, not only will it not have the effect of beautifying the skin, but it will also "attack the upper body" and cause pimples on the face. In severe cases, it can also "injure yin" and affect menstruation. Pregnant women should eat less longan. Although from the perspective of nutritional content, longan contains glucose, sucrose, vitamin A, vitamin B, tartaric acid and other substances, and is very nutritious. Traditional Chinese medicine also believes that longan has the effects of nourishing the heart, calming the nerves, nourishing blood and benefiting the spleen. However, longan is sweet, warm and very hot, so it should not be eaten by anyone with a constitution of yin deficiency and internal heat or suffering from heat diseases. Most women after pregnancy have a deficiency of yin and blood, and yin deficiency breeds internal heat. Therefore, pregnant women often have symptoms of dry stools, dry mouth, fetal fever, and liver meridian stagnation and heat. Chinese medicine has always advocated clearing away heat and cooling blood before pregnancy.