That’s the conclusion I’d draw from the latest published update from the Chicago Health and Aging Project, which was conducted from 1993 to 2012 in over 5,000 adults over the age of 65 with the aim of evaluating some determinants of cognitive health.
In this latest update, the researchers report that those adults who most closely adhered to a Mediterranean-style diet had the least deterioration in cognitive health.
In contrast, those adults who ate mostly a “western-style” diet had the most severe deterioration in cognitive health over the years.
Most interestingly to me, though, is that those adults who ate mostly a Mediterranean-style diet but who also ate a lot of western-style foods did more poorly than those who, I think the best word to use here is “cheated” a lot less on their diet.
In other words, your brain gets a benefit from eating well but you can mitigate that benefit by eating a lot of junk.