The omega-3 fish provide no benefit to higher cognitive abilities
Researchers at the London School of Hygiene & Tropical Medicine, UK, say that consumption of omega-3 found in fish and some vegetables, do not provide any beneficial effect on cognitive function of those older people who consume these products against than previously thought, according to results of a study published in the latest issue of American Journal of Clinical Nutrition.“
Specifically, the study “OPAL” included a total of 867 people in England and Wales aged between 70 and 80 years who were followed up two years to check the quality of their cognitive function. At the start of the all participants a good cognitive health, dividing into two random groups, one of which received capsules for two years with this type of oil. The other group received placebo during the same period. After two years of monitoring found that participants who received these capsules had significantly higher levels of omega-3 fatty acids in the blood, compared with the other group.
However, at baseline and two years later, participants performed a series of tests of memory and concentration, the results showed that cognitive function was unchanged in both groups of participants, which shows no evidence that consumption of omega-3 fatty acids is beneficial for cognitive function of older people, as previous studies had shown.
For one of the authors of Dr. Alan Dangour, we must take care in interpreting these results because “it is important to note that poor cognitive function may take many years to develop, and although this is the best test Throughout this type ever undertaken, may not be long enough to detect these beneficial effects. “The number of people with some type of cognitive impairment is increasing and it is estimated that by 2040 there will be more than 81 million people worldwide with dementia, as acknowledged by the authors of the study