Sun exposure, vitamin D linked to MS risk.WebMD (2/7, Boyles) reported, "Higher vitamin D levels and exposure to sunlight appear to be independently protective against multiple sclerosis," according to a study in Neurology. The study included "216 people with early symptoms of MS who had not yet been diagnosed and 395 people with no MS symptoms matched for age, sex, and area of residence." All the study participants were "asked about their level of sun exposure during different periods of their lives, and the researchers also measured blood levels of vitamin D and skin damage due to sun exposure."
According to HealthDay (2/7, Mozes), "noting that sun exposure ranged from 500 to 6000 kiloujules per meter squared," the authors found that for "every additional 1000 kilojoules of exposure, the risk of developing the first signs of MS dropped by 30 percent." In addition, having a "higher vitamin D level was also independently linked to a lower risk for developing MS." Medscape (2/7, Anderson) also covered the study.
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