Vitamin D and Alzheimer’s

From the NY times Health and Fitness section.

Low vitamin D is associated with an increased risk for Alzheimer’s disease and other forms of dementia, according to a new report, though whether low vitamin D is a cause of the disorders remains unknown.

The study, published online in the journal Neurology, controlled for many dementia risk factors — including age, education, sex, body mass index, smoking, alcohol use, diabetes and hypertension. It found that compared with those who had vitamin D levels of 50 or more nanomoles per liter, those with levels of 25 to 50 had a 53 percent increased risk for all-cause dementia and a 69 percent increased risk for Alzheimer’s disease. People with readings of 25 or less were more than twice as likely to have Alzheimer’s or another form of dementia.

So take your vitamins.