Immunity & Ascorbic acid / Vitamin C

Vitamin C contributes to immune defense by supporting various cellular functions of both the innate and adaptive immune systems

As an antioxidant, vitamin C protects cells, including immune cells, from damage caused by free radicals.

Carr & Maggini 2017 Nutrients 9(11): 1211
Jafari et al. 2019 In: Mahmoudi, M., Rezaei, N. (eds) Nutrition and Immunity. Springer, Cham. https://doi.org/10.1007/978-3-030-16073-9_5
Cerullo et al. 2020 Front. Immunol. 11: 574029

Vitamin C supports epithelial barrier function against pathogens.

Carr & Maggini 2017 Nutrients 9(11): 1211
Jafari et al. 2019 In: Mahmoudi, M., Rezaei, N. (eds) Nutrition and Immunity. Springer, Cham. https://doi.org/10.1007/978-3-030-16073-9_5

Vitamin C accumulates in phagocytic cells such as ne…