Vitamin C
Vitamin C is beneficial in pneumonia treatment, cellular functions,
collagen synthesis in connective tissues, immune support against
pathogens and oxidative stress[21]. Vitamin C is well-known as an
antioxidant that can offset oxidative stress effects by reducing
antioxidant enzymes and consequently oxidative damage increase[22].
Vitamin C may act as a weak antihistamine agent to aid COVID‐19
syndromes such as running nose, swollen sinuses and sneezing, which is
highly found in several fruits and vegetables like oranges, broccoli and
blackcurrants.