Vitamin D reduces MS lesions

Low levels of vitamin D appear to increase chances for MS and speed its progression. In this study, doctors measured vitamin D levels in 1,482 people with MS, and monitored them every three months for at least two years, with magnetic resonance imaging (MRI) to track progress annually for 10 years. Participants were taking interferon-lb as standard treatment.

Overall, the higher the level of vitamin D, the lower the number of new, active neural lesions forming between the start of the study and the last MRI scan. Each increase in vitamin D of 50 nanomoles per liter of blood reduced the rate of new lesions by 31 percent. Those whose vitamin D levels were 100 nanomoles per liter had the lowest rate of new lesions.

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