Vitamin C and the Immune System

Vitamin C and the Immune System


Did you know that Vitamin C is the 4th leading nutrient deficiency in the United States? (Schleicher et al, 2009)

How does vitamin C affect immune function?

Vitamin C supports BOTH the innate and adaptive immune systems, and can both inhibit and activate different parts of the immune system (Carr, 2017).

  • In conditions like asthma and bronchial hypersensitivity, vitamin C can inhibit excessive activation of the immune response (Shaik, BD et al 2015).
  • Vitamin C is necessary for recycling spent neutrophils(a type of white blood cell), in order to prevent toxic debris accumulation and stimulating migration of neutrophils to the site of an infection.
  • In addition to recycling and stimulating neutrophil migration, vitamin C also enhances functions of lymphocytes, macrophages, and mast cells. The reduction of reactive oxygen species benefits the immune system, and accelerates killing of unwanted microbes.

Vitamin C & Infections

Infections increase the need for vitamin C, and indeed, vitamin C is the best natural antiviral. It can both prevent and help fight infections through its enhancement of various parts of the immune system. For example, vitamin C deficiency results in impaired immunity and higher susceptibility to infections. Research shows potential in the use of vitamin C to prevent and treat respiratory and systemic infections. Scientists have even identified that people with respiratory problems have lower vitamin C levels, and administration of vitamin C has been able to lessen these symptoms (Bakaev, V et al, 2004).




Bakaev, V. V. and A. P. Duntau (2004). "Ascorbic acid in blood serum of patients with pulmonary tuberculosis and pneumonia." Int J Tuberc Lung Dis8(2): 263-266

Carr, A. C. and S. Maggini (2017). "Vitamin C and Immune Function." Nutrients9(11).

Schleicher, R. L., M. D. Carroll, E. S. Ford and D. A. Lacher (2009). "Serum vitamin C and the prevalence of vitamin C deficiency in the United States: 2003-2004 National Health and Nutrition Examination Survey (NHANES)." Am J Clin Nutr90(5): 1252-1263.

Huijskens, M. J., M. Walczak, N. Koller, J. J. Briede, B. L. Senden-Gijsbers, M. C. Schnijderberg, G. M. Bos and W. T. Germeraad (2014). "Technical advance: ascorbic acid induces development of double-positive T cells from human hematopoietic stem cells in the absence of stromal cells." J Leukoc Biol96(6): 1165-1175.

Hemilä, H. and P. Louhiala (2013). "Vitamin C for preventing and treating pneumonia." Cochrane Database of Systematic Reviews(8).

Hoffer, A. and Walker, M. (1978). Ortho-molecular. New Canaan, CT: Keats Publishing, Inc.

Shaik-Dasthagirisaheb, Y. (2016). "Relationship between Vitamin C, Mast Cells and Inflammation." Journal of Nutrition & Food Sciences06.

Stone, D. (2018). 80 Years of High Dose Vitamin C Research. Norderstedt: Books on Demand.

Levy, T. (n.d.). Curing the Incurable Vitamin C, Infectious Diseases, and Toxins 3rd edition (3rd ed.).


The Worlds Most Potent Vitamin C!

Alkaline for Life's new Alkalini-C is a pH-balanced, vegetarian, allergen-free, and completely buffered mineral ascorbate. It is the world’s purest, grain-free, and most potent form of vitamin C. Alkalini-C 100% l-ascorbate, fully reduced and corn free works harder, more quickly and more persistently than any other vitamin C on the market!

Alkaline for Life Alkaline Diet Step by Step Webinar Registration
Unrivaled purity, potency In Our Professional Grade ingredients

We source only the highest quality hypoallergenic nutrients with no fillers, binders, or GMOs because we know that each thing you put into your body is sacred.

Featured collection