Dining more often on fish may keep your mind fresh. When researchers interviewed nearly 15,000 adults age 65 and over in seven low- and middle-income countries, they discovered that those who ate fish almost every day were 19 percent less likely to have dementia than those who ate it less frequently. Plus, the amount of fish the seniors ate was directly linked to disease risk. So, upping fish intake even a little can lower the chance of developing dementia. Though the study didn’t establish a cause-and-effect relationship, previous research suggests the omega-3 fatty acids in oily fish like salmon have protective benefits in the brain.
Source: American Journal of Clinical Nutrition, August 2009