Along with statins and aspirin omega-3s seem to be touted as the miracle cure for just about everything. However, a trial by researchers at the London School of Hygiene and Tropical Medicine has found no evidence that it can improve cognition in older people. The trial studied 867 people aged between 70 and 80. For two years half of the participants were given omega-3 and half a placebo and their cognition was tested at the beginning and end of the study. After two years there was no change in cognitive function in either group of participants.
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