Eating foods rich in omega-3 fatty acids may not help improve thinking skills, shows study.
"There has been a lot of interest in omega-3s as a way to prevent or delay cognitive decline, but unfortunately our study did not find a protective effect in older women. In addition, most randomized trials of omega-3 supplements have not found an effect," study author Eric Ammann, MS, of the University of Iowa in Iowa City, said.
However, the researchers did not recommend that people change their diet based on these results.
The researchers found no difference between the women with high and low levels of omega-3s in the blood at the time of the first memory tests. There was also no difference between the two groups in how fast their thinking skills declined over time.
The study is published in journal Neurology.