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Eggs

You might keep memory-scramble at bay with eggs. The yolks are high in choline, a key nutrient required to make the neurotransmitter acetylcholine (it helps with signaling between memory-supporting neurons).

"In our study, people who met the recommended levels of choline performed better on memory tests than those who didn't," says Rhoda Au, PhD, a research professor of neurology at Boston University School of Medicine. The daily recommendation is 425 milligrams; two eggs have about 300 milligrams.

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