Lack of vitamin D may cause multiple sclerosis, study finds

Researchers say findings may have important public health implications as vitamin supplements are relatively safe and cost-effective

Lack of vitamin D may be a direct cause of multiple sclerosis (MS), a study has found. The discovery may have important public health implications since so many people have insufficient levels of the essential vitamin, researchers say.

The findings may help explain why rates of MS, a potentially disabling auto-immune disease that damages nerve fibres, are higher in high-latitude regions such as northern Europe, which have fewer sunny days. Sunshine triggering a chemical reaction in the skin is the primary source of vitamin D.

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