An Open Letter to world governments, currently signed by over 215 leading scientists and doctors, calling for increased vitamin D use to combat Covid-19, was launched just before Christmas in the UK and USA.
The organising signatory in the UK was Dr Gareth Davies, PhD, based in London, and in the USA, Dr Karl Pfleger, PhD, based in San Francisco, whose qualifications, together with those of a sample of the current 215 signatories to the Letter, are listed below. Each indicates how much vitamin D they take daily and what they recommend.
The full list can be seen on their website (https://vitamindforall.org/letter.html) which also lists the main evidence behind their Letter. Vitamin D modulates thousands of genes and many aspects of immune function, both innate and adaptive. The medical evidence shows that:
• Higher vitamin D blood levels are associated with lower rates of SARS-CoV-2 infection. • Higher D levels are associated with lower risk of a severe case (hospitalisation, ICU or death). • Intervention studies (including RCTs) indicate that vitamin D can be a very effective treatment. • Many papers reveal several biological mechanisms by which vitamin D influences Covid-19.
Readers are encouraged to make both their GPs and MPs aware of this Open Letter, now submitted for publication.