Longan, also known as Guiyuan, is a specialty fruit of southern China. It is rich in sugar and many kinds of vitamins and has the effect of nourishing the heart and spleen, nourishing blood and calming the mind. Longan is processed into dried cinnamon. It has always been regarded as a precious tonic. Dried longan can be used to make tea or sweet soup, dried longan is a common tonic, or eaten directly, or used to make tea, soup, sugar water taste good. It nourishes the heart and blood, calms the mind and fixes the spirit, and has a significant tonic effect. It is hot in nature and suitable for people with a cold constitution.Dried longan is rich in vitamins and phosphorus, which is good for the spleen and brain, so it is also used in medicine. It has high total sugar content and is rich in vitamins, retinol, and nicotinic acid. In addition, it contains crude protein, vitamins and inorganic salts, which are essential nutrients for human body. Main Function Rich in vitamins and phosphorus, it is good for the spleen and brain, so it is also used in medicine. Anti-aging. The extract of longan has certain anti-radical and cell function improvement effects. In the Second Scientific Conference on Anti-Aging in China, some scholars suggested that longan may be a potential anti-aging food with MAO-B inhibitory activity, and confirmed that longan has anti-aging effects. Anti-cancer. The Institute of Traditional Chinese Medicine in Osaka, Japan, has conducted anti-cancer tests on more than 800 natural foods and drugs, and found that the aqueous infusion of longan flesh inhibited cervical cancer cells by more than 90%, which was 25% higher than the control group of anti-cancer chemotherapy drug bleomycin, and almost comparable to the anti-cancer drug vincristine. It has effects such as immunomodulation and promoting intellectual development. On the one hand, longan is clinically applied as Chinese herbal medicine, and on the other hand, it can be used as raw material to make "Gui Yuan Mealybug Oral Liquid", "Gui Yuan Herbal Wine", "Longan Jujube Ren Tranquilizer" and other Health care products. Dried longan is a common tonic, or eaten directly, or used to make tea, soup, and sugar water taste good. It can nourish the heart and blood, calm the mind and calm the spirit, with obvious nourishing effect, and is hot in nature, suitable for people with cold constitution.