Fish eaters found to have sharper brains

by Medindia Content Team on  October 12, 2005 at 5:15 PM Diet & Nutrition News
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Fish eaters found to have sharper brains
The benefits of eating fish has been proved with evidence following the finding that fish food reduces the age-related mental decline by the equivalent of three to four years. The research adds to the growing evidence that a fish-rich diet helps keep the mind sharp.

Previous findings have established that consumption of fish is associated with a reduction in the risk of Alzheimer's disease and stroke. Fish such as salmon and tuna that are rich in omega-3 fatty acids also have been shown to prevent heart disease.

More than 3,718 participants, over 65 years were evaluated based on simple tests such as recalling details of a story. They were also required to fill a questionnaire regarding their eating habits, which included more than 139 foods. The questionnaire included four broad seafood categories: tuna fish sandwich; fish sticks/fish cakes/fish sandwich; fresh fish as a main dish; and shrimp/lobster/crab.

Analysis of the data obtained showed that people who ate one fishmeal a week had a 10 percent slower annual decline in thinking. Furthermore, those who ate two fishmeals a week showed a 13 percent slower annual decline. The study however, failed to establish the protective effect of omega-3 fatty acids regarding decline in brain function.

Further research is indicated in establishing the health benefits of omega-3 fatty acid or in the identification of other substances responsible for the observed effect. It would also be appropriate to consider a blood test to evaluate the levels of omega-3 fatty acid.

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