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Vitamin D levels correlate with MS disease severity in new Iranian study

A new study out of Iran has found that vitamin D status correlates with severity of multiple sclerosis in Iranian patients.

There is a well-known link between vitamin D and multiple sclerosis (MS). Studies have shown that getting enough vitamin D throughout life reduces your risk of getting MS. The incidence of MS is also higher in countries further from the equator, leading many researchers to believe that sun exposure and vitamin D are protective against MS....... Read More - http://www.ms-uk.org/index.cfm/vitaminD

They found that in general, MS patients only had slightly lower vitamin D levels than healthy controls, with mean levels of 31.7 ng/ml in MS patients and 35.8 ng/ml in healthy controls.

Those levels are a long way from optimal in both groups. 31.7 ng/mL is only 79.1 nmol/L which is 47.3% less than the ideal of 150 nmol/L. 35.8 ng/mL is 89.4 nmol/L. It looks like both groups are deficient in vitamin D3.