Vitamin D has already been shown to protect against acute respiratory infections. This study aimed to assess the association between the mean levels of Vitamin D in people in various countries and (1) the mortality rate of Covid–19 and (2) the number of cases of the disease.
It finds a positive correlation and says: ‘Vitamin D levels are severely low in the ageing population especially in Spain, Italy and Switzerland. This is also the most vulnerable group of population for Covid-19’. It concludes: ‘We advise Vitamin D supplementation to protect against SARS-CoV2 infection’.
Read here (Research Square, April 8, 2020)
