IOWA CITY, Iowa, Sept. 29 (UPI) -- Omega-3 fatty acids -- from fatty fish and nuts -- have long been called "brain food" for children, but U.S. researchers say it may not help older women.
Study author Eric Ammann of the University of Iowa in Iowa City said the study involved 2,157 women ages 65-80 who were enrolled in the Women's Health Initiative clinical trials of hormone therapy. The women were given annual tests of thinking and memory skills for an average of six years.