A new study presented Wednesday in Chicago lends more support to the idea that a diet rich in fish is beneficial.
Researchers from the University of Pittsburgh Medical Center studied the brains of people who consumed fish regularly. They found an increase in brain volume and higher levels of working memory.
Here is what they're telling the Radiological Society of North America:
"What makes the results of this study so exciting is that consuming fish as infrequently as once a week, one time per week, a very attainable goal, can improve the health of the brain, increase size of the brain in areas that are important for learning, the risk for Alzheimer's disease and enhance specific memory functions of these areas."
Other researchers say the study is promising, but they point out that the results do not definitely prove eating fish will prevent Alzheimer's.
There is speculation the omega-3 fatty acids found in fish oils may reduce inflammation of the brain and play a role in brain development and nerve cell regeneration.