fatty acids may not benefit thinking skills, say scientists
who looked at how the cognitive abilities of older women
declined over nearly seven years.
scientists looked at 2,157 women ages 65 to 80 who were taking
part in the Women’s Health Initiative trials studying
hormone therapy. The women took annual tests of their memory
and thinking skills in seven areas, including visual memory,
fine motor speed and spatial ability. Blood tests measured the
levels of omega-3s in the women’s blood.
was no difference in how fast their cognitive skills declined
based on whether they had high or low levels of omega-3s, the
scientists reported this week online in the journal Neurology.
fatty acids are found in nuts and in fish such as salmon.
There was speculation that omega-3s could help slow cognitive
lead researcher said people should not change their diets
based on this study.
continue to study the relationship between omega-3s and the
health of the heart, blood vessels and brain. We know that
fish and nuts can be healthy alternatives to red meat and
full-fat dairy products, which are high in saturated
fats," Eric Ammann of the University of Iowa and one of
the authors of the study said in a statement.
know that the rate of cognitive decline as people age can vary
widely from person to person, and so there are efforts
underway to try to determine what factors — exercise, diet
or social support, for instance — might be modified to slow