A new meta-analysis published in the journal Nutrition confirms that people with Alzheimer’s and Parkinson’s have lower vitamin D levels than healthy controls.
Both Alzheimer’s and Parkinson’s have become of greater interest in public health in recent years, due to increasing life expectancy, an overall larger elder population and subsequent increase in incidence of both diseases. Vitamin D has been proposed to play a role in both. Many studies have looked at the vitamin D levels of people with these diseases and compared them to healthy controls and have found low levels. Furthermore in a recent high quality study, a randomized controlled trial showed that vitamin D may be of some help in Parkinson’s. Similar studies are underway for Alzheimer’s.