Fruits and veggies for cognition

This long-term study measured the diets of 27,842 men, average age 51, over a 20-year period. 

Every four years, the men reported the previous year’s diet and any changes in memory and cognition. Doctors assessed cognition at average age 73. Overall, men who consumed the most vegetables were 34 percent less likely to have developed cognitive decline compared to men who got the least.

Those who drank orange juice daily were 47 percent less likely compared to those who drank OJ less than once a month and eating more fruit was also beneficial. Leafy greens, dark orange, and red vegetables, and berry fruits had the strongest links to good cognition.

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