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50+: Live Better, Longer

Berries May Slow Memory Loss

Study: Eating More Blueberries and Strawberries Is Linked to Better Brain Function With Age
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How Berries May Be Good for the Brain continued...

Berries, particularly blueberries, are rich in a particular kind of antioxidant compound called anthocyanidins. Anthocyanidins have the ability to move from the blood into the brain. And studies in animals have shown that these compounds concentrate in brain centers responsible for memory and learning.

Further studies in mice that are bred to develop brain changes similar to those seen in Alzheimer's patients show that blueberries protect these mice from memory declines. And small studies in humans with early memory loss have shown that adding 1/2 to 1 cup of blueberry juice to the diet each day for three months improved some measures of memory.

"I think it's very exciting," says Brent Small, PhD, professor of aging studies at the University of South Florida in Tampa. "Because there's not a lot that's been reported in the human literature that's focused on these types of compounds."

Small is testing a blueberry-based supplement on memory in humans, but he was not involved in the new study.

"The fact that they were able to see an effect for people who are generally healthy and who aren't experiencing significant drops in performance is interesting," Small says.

Berries on a Budget

Other experts agree that more studies need to be conducted to prove the berries alone are behind the benefit.

But they say there's no real harm in adding more berries to your diet, even before all the evidence is in.

"We know that flavonoids in fruits and vegetables act as really good protection for a range of chronic diseases," including cancer and diabetes, says Nancy Copperman, MS, RD, director of public health initiatives at the North Shore-LIJ Health System in Great Neck, N.Y.

"And now, with this study, they've actually looked at how these flavonoids, especially the types of flavonoids found in blueberries and strawberries, really might protect cognitive function in women," she says.

Copperman acknowledges that at $3 to $6 a carton, fresh berries can be expensive. To cut costs, she recommends buying frozen berries, or waiting until the fresh berries go on sale and freezing what you don't need right away.

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