NEW YORK: One cup of coffee a day reduces the risk of falling ill with Covid-19 by around a tenth, according to a major study. The study, led by researchers from the Northwestern University in the United States, also discovered that the consumption of more vegetables, and less processed meats, could cut the risk of Covid infection.
"Coffee consumption favourably correlates with inflammatory biomarkers such as CRP, interleukin-6 (IL-6), and tumour necrosis factor I, which are also associated with Covid-19 severity and mortality," said the study published in the journal Nutrients, adding that "Coffee consumption has also been associated with lower risk of pneumonia in elderly. Taken together, an immune-protective effect of coffee against Covid-19 is plausible and merits further investigation," it said.
For the study, the team analysed the records of 40,000 British adults in the UK Biobank. They looked at the link between diet factors including daily intake of coffee, tea, oily fish, processed meat, red meat, fruit, and vegetables, and Covid.
"Our results support the hypothesis that nutritional factors may influence distinct aspects of the immune system, hence susceptibility to Covid-19. Encouraging adherence to certain nutritional behaviours (eg, increasing vegetable intake and reducing processed meat intake) may be an additional tool to existing Covid-19 protection guidelines to limit the spread of this virus," said the researchers.
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