Which Dietary Supplements Help Prevent COVID-19?

Researchers from the UK, US, and Sweden conducted a study surveying population’s use of dietary supplements over the past few months. The research included insights from 1.4 million users of the COVID Symptom Study app. In this self-reported regular dietary supplement usage was checked. The supplements included probiotics, garlic, omega-3 fatty acids, vitamin D, vitamin C, or zinc. The research found that

• Omega-3 fatty acids reduced the risk of SARS-CoV-2 by 12 %

• Probiotics reduced the risk of SARS-CoV-2 by 14%

• Vitamin D reduced the risk of SARS-CoV-2 by 9%

• Multivitamins reduced the risk of SARS-CoV-2 by 13%

• Vitamin C, zinc, or garlic supplements did not significantly reduce the incidence of SARS-CoV-2 infection

The researchers reported that vitamin D promotes the production of cathelicidin, a microbicidal component of the innate immune system.  Multivitamins have antioxidant properties, and studies have shown that they may reduce the risk of respiratory infections. Probiotics alter the gut microbiota and may generate anti-viral metabolites that strengthen the host immune system.

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Ref link: https://www.medrxiv.org/content/10.1101/2020.11.27.20239087v1