It's a no-brainer. Get enough of the B vitamin folate and you may prevent some of the forgetfulness that occurs with aging. Folate and its manmade version, folic acid, play a key role in brain function.
Forget where you put your cell phone again? Better scarf down a handful of folate-rich peanuts. Actually it's not as simple as all that, but keeping folate levels high is extremely important to memory.
Where can you find folate? Try asparagus. In just 1/2 cup of cooked asparagus you can get 131 micrograms of folate.