The Value of Vitamins
There appears to be a few vitamins that one might take that can improve the brain of older adults.
First reported in the New York Times, a recent study found that higher blood levels of omega-3 fatty acids, vitamin B, vitamin C, vitamin D and vitamin E are associated with better mental functioning in the elderly.
After controlling for age, sex, blood pressure, body mass index and other factors, the researchers found that people with the highest blood levels of the four vitamins scored higher on the cognitive tests and had larger brain volume than those with the lowest levels.
Omega-3 levels were linked to better cognitive functioning and to healthier blood vessels in the brain, but not to higher brain volume, which suggests that these beneficial fats may improve cognition by a different means. Higher blood levels of trans fats, on the other hand, were significantly associated with impaired mental ability and smaller brain volume.
http://www.nytimes.com/2012/01/03/health/research/vitamins-b-c-d-and-e-and-omega-3-strengthen-older-brains.html?_r=1&src=me&ref=general