Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Vitamin C (ascorbic acid) has been explored for its role in supporting or treating bacterial infections, but evidence remains limited. Historically, vitamin C has been used in various cultures for general immune support, but its direct application to bacterial infections is primarily based on scientific inquiry rather than deep traditional use. Mechanistically, vitamin C is involved in several immune functions, including supporting epithelial barrier integrity, enhancing phagocytic cell function, and promoting the oxidative burst necessary to kill pathogens. Some in vitro and animal studies suggest vitamin C may inhibit the growth of certain bacteria or enhance the action of antibiotics.

Clinical evidence in humans, however, is less robust. A few small studies and case reports have indicated that high-dose vitamin C may reduce the severity or duration of some bacterial infections (such as pneumonia), especially in individuals with vitamin C deficiency. However, large-scale randomized controlled trials are lacking, and systematic reviews generally conclude that while vitamin C supplementation is safe and may be beneficial in deficiency states, its routine use as adjunct therapy for bacterial infections is not supported by strong evidence. Therefore, the current scientific support for vitamin C in treating bacterial infections rates as moderate to low (2 out of 5), with its main benefit likely limited to populations at risk of deficiency rather than as a general antimicrobial agent.

More about vitamin C
More about Infection (bacterial)

Other ingredients used for Infection (bacterial)

Other health conditions supported by vitamin C

Products containing vitamin C

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