A number of recent studies published in the Archives of Internal Medicine and Archives of Neurology have found that vitamin D and vitamin E appear to play an important role as we age.
Two independent long-term studies which have recently come to completion have found that higher vitamin D levels seem to lead to a reduced risk for Parkinson's disease, while low levels of vitamin D spell trouble for our ability to think clearly, learn, and memorize.
Additionally, another long-course experiment has found that consuming higher levels of vitamin E is associated with lower risk of dementia and Alzheimer's disease.
For further details, please take a moment to have a look at the abstracts below:
DSIB: Vitamin D
DSIB: Vitamin E
Archives of Neurology: Dietary Antioxidants and Long-term Risk of Dementia
Archives of Neurology: Serum Vitamin D and the Risk of Parkinson Disease
Archives of Internal Medicine: Vitamin D and Risk of Cognitive Decline in Elderly Persons