Journal
FRONTIERS IN MEDICINE
Volume 7, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fmed.2020.559811
Keywords
artificial respiration; ascorbic acid; coronavirus; critical care; pneumonia; respiratory distress syndrome; respiratory tract infections
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Vitamin C has shown to prevent and alleviate viral infections in numerous animal studies and placebo-controlled trials with humans, especially in respiratory virus infections. High doses of vitamin C are needed to increase plasma levels in critically ill patients, which has been shown to reduce ICU stay and mortality rates in sepsis patients. Vitamin C may have beneficial effects on acute respiratory distress syndrome (ARDS) complicating COVID-19 pneumonia.
In numerous animal studies, vitamin C has prevented and alleviated viral and bacterial infections. In a few dozen placebo-controlled trials with humans, vitamin C has shortened infections caused by respiratory viruses, which indicates that the vitamin can also influence viral infections in humans. In critically ill patients, plasma vitamin C levels are commonly very low. Gram doses of vitamin C are needed to increase the plasma vitamin C levels of critically ill patients to the levels of ordinary healthy people. A meta-analysis of 12 trials with 1,766 patients calculated that vitamin C reduced the length of ICU stay on average by 8%. Another meta-analysis found that vitamin C shortened the duration of mechanical ventilation in ICU patients. Two randomized placebo-controlled trials found statistically significant reduction in the mortality of sepsis patients. The effects of vitamin C on acute respiratory distress syndrome (ARDS) frequently complicating COVID-19 pneumonia should be considered. Vitamin C is a safe and inexpensive essential nutrient.
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