Vitamin C is involved in the normal metabolism of tissues, an electron donor (or reducing agent) for intracellular and extracellular chemical reactions, and a natural antioxidant in the body. At the same time, vitamin C is an essential vitamin for the immune system, and a deficiency of vitamin C can affect the immune function of the body.<\/p>\n
–Lin Xiaoming, Advanced Nutrition (2nd Edition) [M]. Beijing, Peking University Medical Press, 2017:236<\/p>\n
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Vitamin C can promote the formation of antibodies in the body, improve the phagocytosis of leukocytes, increase the body’s resistance to diseases and tolerance to cold, thus enhancing the body’s immune function.<\/p>\n
–Zeng Xiangyun, Physiological function and dietary protection of vitamin C[J]. China Food and Nutrition, 2005,4:53<\/p>\n
Animal studies have shown that when vitamin C is deficient, the body’s immune response to infection is abnormal. Vitamin C has an important effect on the function of phagocytes. In vitamin C deficiency, phagocytes are unable to function properly, resulting in decreased resistance to infection.<\/p>\n
A large number of controlled trials were conducted in volunteers to assess the effect of vitamin C on the common cold. The results showed that people who regularly took vitamin C at a dose of 200 mg or more per day had a slightly shorter duration of the common cold than those who did not take vitamin C (about 10%).<\/p>\n
–Yang Yuexin, Ge Keyou. The Complete Book of Chinese Nutritional Science [M]. Beijing, People’s Health Press, 2019: 337<\/p>\n
Vitamin C can promote lymphoblastogenesis, stimulate the proliferative response of lymphocytes, improve the body’s recognition and phagocytosis of foreign or malignant cells, and also increase phagocytic activity. Vitamin C can enhance the chemotaxis of circulating blood neutrophils in healthy people. Vitamin C can also improve the movement of neutrophils and bactericidal function in people with abnormal immune function.<\/p>\n
–Lin Xiaoming, Advanced Nutrition (2nd ed.) [M]. Beijing, Peking University Medical Press, 2017:237<\/p>\n
Vitamin C spontaneously destroys histamine, so supplementation may help prevent asthma attacks as well as relieve symptoms of respiratory infections.<\/p>\n
In patients supplemented with vitamin C, phagocytic neutrophil activity was increased, resulting in a lower rate of infection in patients. Some evidence suggests that taking vitamin C may enhance the viability of natural killer cells, which play a very important role in the immune surveillance of tumor cells early in tumor development.<\/p>\n
–Yang Yuexin, Li Ning, Guidelines for the Application of Nutritional Functional Ingredients, Beijing, Peking University Medical Press, 2011:207<\/p>\n
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Vitamin C is involved in the normal metabolism of tissues, an electron donor (or reducing agent) for intracellular and extracellular chemical reactions, and a natural antioxidant in the body. At the same time, vitamin C is an essential vitamin for the immune system, and a deficiency of vitamin C can affect the immune function of […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"yoast_head":"\n