Supplement vitamin C in the right way to prevent Covid-19

21.03.23 119

Vitamin C is an essential nutrient that increases the body’s resistance, especially during the current epidemic. However, many people do not know how to supplement vitamin C during the epidemic season properly. Let Solife answer in detail in the article below.

1. How does Vitamin C affect immunity?


Vitamin C participates in many biochemical processes in the body to enhance resistance. The specific effects of vitamin C on the body’s immunity are as follows:

  • Vitamin C has antioxidant effects, helps reduce inflammation, and improves immune system function.
  • Promotes collagen production, keeps skin healthy and heals quickly.


  • Promotes the activity of immune cells, thereby helping the body to fight potentially harmful bacteria.
  • Neutralizes free radicals, preventing cell damage caused by free radicals.

Many studies have also shown that vitamin C can reduce the symptoms of colds, and shorten the duration of colds.

So should I take vitamin C if I have covid? In fact, vitamins bring great benefits in strengthening the immune system, and improving resistance. Therefore, vitamin C supplementation during the epidemic season is extremely necessary.

2. What evidence shows that Vitamin C increases resistance during the epidemic season for people infected with Covid-19?

So far, vitamin C has been recorded with positive effects on patients. Specifically:

  • Help people with respiratory distress syndrome, acute respiratory infections.
  • Reduces the severity and duration of the common cold.
  • Reduces length of stay as well as symptoms of pneumonia in elderly patients.
  • Shorten the time to cool the breathing of patients being treated in the ICU.
  • Shorten the time to cool the breathing of patients being treated in the ICU.


In particular, supplementing with vitamin C during the epidemic season helps to increase resistance for people infected with covid 19. This has been proven by many studies:

In an article in the Journal of Infectious Diseases in China, the Shanghai Medical Association said that using high doses of vitamin C supports the treatment of people hospitalized with COVID-19. Higher-than-normal doses can help improve spectrum function, eliminating the need for mechanical ventilation.

In an article in the Journal of Infectious Diseases in China, the Shanghai Medical According to a study published in the US National Library of Medicine, vitamin C has the effect of supporting the cellular functions of the immune system, thereby contributing to the protection of the immune system. Vitamin C deficiency can lead to a weakened immune system and an increased susceptibility to infections.

However, there has not been any research on whether vitamin C is effective in treating covid. However, supplementing with vitamin C during the pandemic is a necessary solution to protect yourself and those around you from the rapid spread of the disease.

3. How to supplement with vitamin C to increase resistance?

Vitamin C is not produced in the body, so it needs to be replenished regularly. However, vitamin C supplementation increases resistance during the epidemic season, not everyone knows.

According to the US National Institutes of Health, the amount of vitamin C needed to supplement for each age is different. Specifically:

  • Infants 0 – 6 months: 40mg
  • Infants 7 – 12 months: 50mg
  • Children 1-3 years old: 15mg
  • Children 4 – 8 years old: 25mg
  • Children 9 -13 years old: 45mg
  • Teenagers 14 – 18 years old: 65 – 75mg
  • Adults: 75 – 90mg.
  • Pregnant women: 85mg
  • Lactation: > 115mg.

To supplement vitamin C effectively against covid, it is necessary to follow the prescribed dosage. Do not take too much vitamin C or use it in high doses because it can cause negative effects on health.

Vitamin C can be found in many fruits and vegetables. In each type will have the content as well as the corresponding nutritional value. Some vegetables rich in vitamin C you can refer to:

  • Citrus fruits: Typically oranges, grapefruits, tangerines, lemons, etc.
  • Red bell pepper: Has twice the vitamin C content of oranges and tangerines. Besides, it is also rich in beta carotene, which helps to beautify the skin and protect the eyes.
  • Broccoli: Contains a lot of vitamins A, C, E, muscle substances, antioxidants, helps protect the body maximum.
  • Ginger: Reduce inflammation, reduce nausea, fight inflammation and increase resistance.
  • Kiwi: Contains a full range of essential nutrients such as vitamins C, K, folate, potassium … to help strengthen white blood cells to fight infections.
  • Yogurt: A good source of vitamin D, which strengthens the immune system and fights disease.


Vitamin C is also abundant in poultry and shellfish. So don’t forget to include these foods in your daily meals.

In particular, when supplementing with vitamin C during the epidemic season, do not forget to use health-protecting Vitamin C functional food to increase resistance and fight harmful viruses.

Read more: Instructions on how to use vitamin C for health


And that’s our sharing about the effects of vitamin C as well as how to supplement vitamin C in the epidemic season effectively. Hopefully, with this information, readers have had more useful information. Thereby, you can take care of and protect the health of yourself and those around you during the epidemic season.


Trần Hoàng Uyên (Senior Manager Pharmaceutical company) là chuyên gia cấp cao với nhiều năm kinh nghiệm trong lĩnh vực dược phẩm. Tốt nghiệp cử nhân chuyên ngành Quản lý dược I tại Trường Đại học Y dược TP. Hồ Chí Minh và hiện đang công tác tại công ty dược phẩm. Với hơn 10 năm kinh nghiệm làm việc trong ngành dược, chị Hoàng Uyên là chuyên gia cộng tác tham vấn y khoa cho danh mục blog cũng như các nội dung liên quan trên Solife. (Tran Hoang Uyen (Senior Manager Pharmaceutical company) is a senior specialist with many years of experience in the Pharmaceutical field. She graduated Bachelor of Pharmacy Management I at the University of Medicine and Pharmacy at Ho Chi Minh City and is currently working for a pharmaceutical company. With more than 10 years of experience working in the pharmaceutical industry, Ms. Hoang Uyen is a medical consultant collaborator for content on Solife's website.)