Although salmon, tuna and other fatty fish can be a valuable part of your diet, the omega-3 fatty acid found in them may not protect against cognitive decline in older women, as earlier research has suggested.
That’s the conclusion of a recent study of more than 2,000 women ages 65 to 80, according to the journal Neurology. The women were tested for the amount of omega-3 fatty acids in their blood, then given annual tests on thinking and memory skills for about six years. Those with high amounts of omega-3 in their blood scored no better than the women with lower amounts, and there was no difference in cognitive decline between the two groups over the length of the study.
But health experts still say it’s smart to consume fatty fish for heart health.