Clearly 30 as a target remains too low. The Copenhagen study of 250,000 people shows lowest mortality at 50-60.
Why are reccomendations still for 600iu when 2000 gets people to 50ish?
By the Editors
Low serum vitamin D in women is associated with increased future risk for multiple sclerosis, according to a prospective, case-control study in Neurology.
Using Finnish registries, researchers matched roughly 1100 women with MS to 2100 without the condition. Serum samples obtained during the women's pregnancies — about 9 years before MS diagnosis — were used to measure 25-hydroxyvitamin D levels. Researchers found that women with vitamin D levels below 30 nmol/L (12 ng/mL, the unit more commonly used in the U.S.) had a 43% higher MS risk than those with levels at or above 50 nmol/L (20 ng/mL).
Dr. Robert Naismith of NEJM Journal Watch Neurology explores the significance of the findings at the link below.