British researchers have found an association between low average levels of
vitamin D and high numbers of COVID-19 cases
Previous observational studies have reported an association between low levelsof vitamin D and susceptibility to acute respiratory tract infections.
According to the researchers from Anglia Ruskin University in the UK, Vitamin D modulates the response of white blood cells, preventing them from releasing too many inflammatory cytokines
The COVID-19 virus is known to cause an excess of pro-inflammatory cytokines
Italy and Spain have both experienced high COVID-19 mortality rates
New study, published in the journal Aging Clinical and Experimental Research, shows that both countries have lower average vitamin D levels than most northern European countries
This is partly because people in southern Europe, particularly the elderly,
avoid the strong sun Skin pigmentation also reduces natural vitamin D synthesis
The highest average levels of vitamin D are found in northern Europe, due to
the consumption of cod liver oil and vitamin D supplements, and possibly less sun avoidance
Scandinavian nations are among the countries with the lowest number of
COVID-19 cases and mortality rates per head of population in Europe.
Vitamin D has been shown to protect against acute respiratory infections, and older adults, the group most deficient in vitamin D, are also the ones most seriously affected by COVID-19
A previous study found that 75 per cent of people in institutions, such as
hospitals and care homes, were severely deficient in vitamin D
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