You've likely read about the benefits of eating fish at least a couple of times a week. There have been studies that link fish consumption to lower rates of heart disease, stroke and diabetes. There have been studies about the association of fish consumption and Alzheimer's disease, but a group of researchers found a link that appears to show fish really is fuel for the brain.
Most of the studies have been retrospective where researchers look back at information and work to draw conclusions, but this prospective study followed participants over five years. This study involved 210 participants in a large ongoing evaluation of elderly residents in the Netherlands. The participants had been tested at the beginning of the research with a screening test used by physicians to detect dementia—the Mini Mental Status Exam. The MMSE is a 30-question test that has been shown to be reliable both in clinical practice and as a research tool.
At the beginning of the study the mental status of the participants did not differ. Over the five years there was decline in both groups, but the MMSE scores of those who did not eat fish declined at a rate 4 times that of those eating fish twice a week or more. There was a suggestion from the data that eating more fish results in less decline.
This is another of the many studies that eating fish is great for you. More and more research shows that not only is fish good for your heart, but that it really is "brain food."
Eat well, eat healthy, enjoy life!
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