Journal of Neurology published an article recently indicating Alzheimer’s disease is associated with low levels of vitamin D. As old adults have an alarming deficit of vitamin D, they have a greater risk for dementia later.
The research involving 1,658 dementia-free people with ages over 65 tested the vitamin D levels in their blood stream, and their health was observed for an average of 5.6 years. During this time, 171 of the subjects developed dementia, and 102 subjects developed Alzheimer’s disease. All subjects had participated in the US population-based Cardiovascular Health Study. Researchers noted low levels of vitamin D were responsible for a 53 percent higher risk of dementia in participants, while severe deficit of vitamin D made participants 125 percent more likely to develop the disease, when compared with participants with regular levels of vitamin D.
Even though the connection between low levels of vitamin D and dementia is untouchable, researchers clearly state deficit of vitamin D does not cause dementia. In follow-up clinical trials, the researchers will test whether eating foods rich in vitamin D such as oily fish or taking vitamin D supplements can prevent the occurrence of dementia or Alzheimer’s disease.