Omega-3 – money is wasted?
Contrary to advertising, omega-3 does not protect the brain from aging
American scientists have found that dietary supplements with a high content of omega-3 fatty acids do not protect the brain from aging and do not help preserve cognitive abilities in old age.
An article on omega-3 was published this week by a group of researchers from Harvard Medical School and the National Institutes of Health in the journal JAMA (Chew et al., Effect of Omega-3 Fatty Acids, Lutein/Zeaxanthin, or Other Nutrient Supplementation on Cognitive Function).
For six years, from 2006 to 2012, researchers observed almost 4,000 volunteers from all over the United States. The average age of the volunteers was 72 years. The subjects were divided into 4 groups: one received omega-3 fatty acids, the second – lutein and zeaxanthin (nutrients contained in leafy vegetables), the third group – omega-3, as well as lutein and zeaxanthin. Members of the fourth group took a placebo. The participants of the experiment took tests every two years, during which their memory, attention and speed of thinking were evaluated.
The researchers concluded that there was no improvement in cognitive abilities in any of the groups, and the test results of the participants of the first three groups did not differ from the results of the fourth group.
According to Newsweek (Omega-3 Supplements Are a Waste of Money), about $30 billion is spent annually worldwide on dietary supplements with a high content of omega-3 fatty acids, which, according to manufacturers, slow down brain aging.
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28.08.2015