Can vitamin C really enhance immunity? How to supplement vitamin C reasonably? Who is prone to vitamin C deficiency? The questions you're most concerned about have authoritative answers. The "Vitamin C and Immunity Report" gave a detailed introduction of the "star nutrient" vitamin C at the site of the sixth CIIE. The report was compiled by the "National Nutrition Literacy Improvement Plan" of China Health Promotion and Education Association based on a questionnaire survey of clinicians, and invited experts from the "Science and Technology China" smart Health professional Science and Technology Service Group led by Professor Ma Guansheng of the School of Public Health of Peking University, and supported by Bayer.

Vitamin C has been known to help humans fight "scurvy", but it actually has a number of health benefits. According to the report, vitamin C can resist oxidation, regulate immunity, reduce cholesterol, detoxify, and promote calcium and iron absorption. Professor Ma Guansheng of the School of Public Health of Peking University introduced at the press conference that the current research on vitamin C and immunity has been widely concerned. In the 1970s, twice Nobel Prize-winning scientist Linus. Dr. Linus Pauling recommends high doses of vitamin C to boost immunity to treat the common cold and prevent cancer. Therefore, vitamin C can be said to be widely used under his proposal. The relationship between vitamin C and immunity has always been a hot topic in scientific research circles. Many studies have explored the potential mechanisms of vitamin C in immune system function, including: it can enhance the epithelial barrier, phagocyte function; Help T/B lymphocyte proliferation and differentiation, play a role in enhancing immunity; At the same time, it can also enhance our immune function through inflammatory mediators or other mechanisms.

Professor Ma Guansheng reminds that these types of people in life are easy to lack vitamin C: (1) people who do not like to eat vegetables and fruits. (2) Obese people. (3) Smoking population. Smoking causes oxidative stress and increases vitamin C consumption. (4) Pregnant and lactating women. Their overall vitamin C needs increase. (5) The elderly. Their digestive function is weakened, and they are prone to insufficient dietary intake causing vitamin C deficiency. If there is a disease state, inflammation or oxidative stress response is enhanced, the consumption of vitamin C in the body is increased, and it is also easy to lack. Studies conducted in hospitalized patients have found that vitamin C consumption is very common among patients, so special attention should be paid to vitamin C supplementation in hospitalized patients.

The survey found that most clinicians have a regular daily vitamin C supplement habit. 91.8% of the respondents chose to take vitamin C supplements on a daily basis, and believed that taking vitamin C supplements can help them maintain a more positive attitude in their daily work. In addition, many respondents choose to take vitamin C supplements during the high incidence of colds and infectious diseases. However, the survey also found that clinicians are generally aware of the role of vitamin C in boosting immunity and assisting in the treatment of respiratory infections, but the knowledge of its prevention of non-communicable chronic diseases is still insufficient. In addition, the understanding of the recommended intake and lack of high-risk groups still needs to be improved. Kong Lingzhi, executive vice president and secretary-general of the China Health Promotion and Education Association, pointed out that in recent years, with the continuous promotion of the "Healthy China Action", the public's awareness of health and nutrition has been significantly improved. People's awareness and attention to nutrients is also increasing, which is a very good phenomenon. However, there are still some misunderstandings about the recognition, understanding and use of some nutrients. For example, the star nutrient "vitamin C" plays an important role in our lives, but we can not ignore its existence of cognition and use errors. This is also an important reason for the organization to compile the Vitamin C and Immunity Report.