Vit D protects against COPD exacerbations

Correcting vitamin D deficiency in patients with COPD reduces the risk of moderate or severe exacerbations, UK researchers have found.

Supplementation reduces the number of moderate or severe exacerbations in patients with levels below 50nmol/L, but does little for patients with higher levels, according to their study of 240 patients who were randomly allocated six twice-monthly oral doses of 3mg vitamin D or placebo for one year.

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