Pop quiz: What is the percentage decrease in deaths by a Vitamin D increase of 10 nmol
Note: UK definition of deficiency is: <25 nmol/L (<10 ng/mL)

Take the test at MDedge
Description of Lancet study is at Does Vitamin D Benefit Only Those Who Are Deficient?
- Estimating dose-response relationships for vitamin D with coronary heart disease, stroke, and all-cause mortality:
observational and Mendelian randomisation analyses - Lancet, Oct 2021 - PDF
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