Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Vitamin A plays a crucial role in maintaining the integrity and function of mucosal surfaces, which are the body's first line of defense against bacterial pathogens. Scientific studies have demonstrated that Vitamin A deficiency impairs both innate and adaptive immune responses, leading to increased susceptibility to bacterial infections. Supplementation with Vitamin A, particularly in populations at risk of deficiency (such as children in low-income countries), has been shown to reduce morbidity and mortality from certain infections, especially measles and diarrheal diseases, which can have bacterial etiologies.

Randomized controlled trials and meta-analyses indicate that Vitamin A supplementation can reduce the severity and incidence of infections like pneumonia and diarrhea, although the effect size may vary depending on baseline nutritional status and local disease prevalence. The World Health Organization recommends periodic Vitamin A supplementation for children aged 6–59 months in areas where Vitamin A deficiency is a public health problem, partly due to its impact on infectious disease outcomes.

However, Vitamin A supplementation is not a primary treatment for established bacterial infections, nor is it used as an antibiotic. Its role is more supportive or preventive by improving host defenses. In summary, while Vitamin A is not a direct antimicrobial agent, scientific evidence supports its use in reducing susceptibility and improving outcomes in bacterial infections, particularly among those deficient in the vitamin.

More about Vitamin A (retinyl not specified)
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Other ingredients used for Infection (bacterial)

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