A diet high in flavanols—especially epicatechin, found in berries, cherries, and chocolate—improves memory and enhances the growth of neurons and blood vessels in the hippocampus.

In over 50 trials, researchers found that women who supplemented with cranberry products reduced their risk of symptomatic urinary tract infections by more than 25%.

Older adults who scored higher on memory tests tended to have larger gray-matter in the brain in addition to higher levels of omega-6, -7 and -9 fatty acids in their blood.

In a meta-analysis of 40 studies, compounds in cinnamon—eugenol, cinnamaldehyde and cinnamic acid—were found to positively alter cognitive function.