The chemical nature of vitamin C
Vitamin C is important for immune system function and is a powerful antioxidant. It also acts as a cofactor in collagen synthesis.
The Institute of Medical Chemistry, University of Szeged, Hungary
Vitamin C and Common Cold Incidence
Vitamin C supplementation may be beneficial for individuals undergoing heavy physical exertion who experience frequent upper respiratory tract infections.
Department of Public Health, University of Helsinki, Finland
Vitamin C and immune cell function in inflammation and cancer
Low vitamin C levels can negatively affect immune cell function.
Biochemical Society Transactions
Vitamin C and Immune Function
Vitamin C contributes to a more resilient immune system by supporting various cellular functions of both the innate and adaptive immune systems, and may therefore help prevent respiratory and systemic infections.
Department of Pathology, University of Otago, New Zealand
Immune-Enhancing Role of Vitamin C and Zinc and Effect on Clinical Conditions
Supplementation with vitamin C and zinc improves immune function and reduces the risk, severity, and duration of infectious diseases.
Bayer Consumer Care Ltd., Basel
The Long History of Vitamin C
Vitamin C supplementation may be beneficial in reducing respiratory tract infections.
Department of Movement Sciences and Wellbeing, University of Naples Parthenope, Naples, Italy
The effect on winter illness of large doses of vitamin C
According to various studies, vitamin C may be effective in shortening the duration of the common cold.
PubMed - přehled studií
Vitamin C for preventing and treating the common cold
According to a meta-analysis, vitamin C successfully shortened the duration of the common cold (by an average of 8–14%).
Department of Public Health, University of Helsinki, Helsinki, Finland
