25 August 2015
While some research suggests that a diet high in omega-3 fatty acids can protect brain health, a large clinical trial found that omega-3 supplements did not slow cognitive decline in older persons. With 4,000 patients followed over a five-year period, the study is one of the largest and longest of its kind.
http://www.sciencedaily.com/releases/2015/08/150825111254.htm
