Vitamin D & COVID-19 – evidence to recommend supplements

Emma (MS nurse at Beds and Northants MSTC) has pointed MS National to this article in the British Medical Journal. There are now close to 30 or so studies demonstrating that having optimal blood levels of 25(OH)-vitamin D (75-150 nmol/L) reduces COVID-19 risks: reduced risk of infection; reduced risk of severe disease; reduced risk of dying.Many researchers now regard the evidence as ‘overwhelming’. There is little to be lost (vitamin D supplements are inexpensive and have low risk of toxicity) and a huge amount to gain by recommending a decent daily dose of vitamin D3 (say 1-2,000 IU for children and 4-5,000 IU for adults).