Vitamin C (Ascorbic Acid) is a water-soluble vitamin and powerful antioxidant. It is needed to make collagen for muscles and blood vessels. It is important for wound healing and acts as a natural antihistamine. It helps in the formation of liver bile and helps the body to fight viruses.
Vitamin C is one of our most important antioxidants to mop up those free radicals when we're sick. Vitamin C can significantly reduce the incidence and severity of pneumonia, which is one of the major complications of COVID-19. There is a clinical trial (NCT04342728) exploring the role of Vitamin C and Zinc supplementation in COVID19 (COVID A to Z). There is evidence vitamin C and quercetin co-administration exerts a
synergistic antiviral action due to overlapping antiviral and immunomodulatory properties. Also, the ability of vitamin C to recycle and enhance the benefits of quercetin. This combination can be used as a prophylaxis in high-risk populations and for the treatment of COVID19 patients as an adjunct to promising pharmacological agents such as remdesivir or convalescent plasma.