Researchers in Chicago have determined that eating fish at least one time per week is good for you, slowing age-related mental decline by the equivalent of three to four years.
According to a study posted online in the Archives of Neurology, researchers at Rush University Medical Center examined over 3,700 Chicago residents age 65 or older to determine the association between fish consumption and cognitive decline. Study particpants took a series of tests three times over a period of six years.
According to the researchers, those who ate one fish meal a week had a 10% slower annual decline in thinking, while those who ate two fish meals a week showed a 13% slower annual decline.
In this particular study, the researchers looked for, but found, no link between omega-3 fatty acids specifically and mental decline.