Two Berries Delay Brain Aging Two-and-a-Half Years

A Harvard study published in the Annals of Neurology indicates that eating a diet high in blueberries and strawberries can slow brain aging and cognitive decline by up to two and a half years.

Dr. Elizabeth Devore and her team of researchers at Harvard Medical School analyzed data from the lengthy Nurses’ Health Study in 1976.  Questionnaires were completed every four years since 1980 to assess the frequency of berry intake and the intake of 31 different phytonutrients called flavonoids.  In 16,010 participants over the age of 70 between 1995 and 2001, cognitive function was tested every two years.

The researchers found that those participants who consumed a high amount of blueberries or strawberries had slower decline in cognitive function test scores during the follow-up period than those whose intake of these fruits was lower.  The results were an average delay in cognitive decline due to aging of up to 2-and-a-half years.

Both blueberries and strawberries are excellent sources of flavonoids, which reduce inflammation.  This is possibly the mechanism that is causing the positive brain health effects.  The same study also found that a high intake of anthocyanidins and total flavonoids were also linked to the beneficial cognitive effects.

Keep reading to discover other amazing health benefits of flavonoids…

Anthocyanidins are a type of flavonoids responsible for the red, blue, or purple colors in berries and other foods.  While the effect of consumption of other anthocyanidin and flavonoid-rich foods was not assessed as part of this study, it is likely that they will have similar brain protective effects.  Other sources of anthocyanidins and flavonoids include:  blueberries, cherries, cranberries, grapes, raspberries, and strawberries and to a lesser extent in almonds, apples, cocoa, and peanuts.

Other research shows that they decrease free radical activity in and between brain cells. They also inhibit the production of histamine, making them a natural anti-histamine without the drowsy side effects of many pharmaceuticals. Numerous studies show that anthocyanidins have anticancer and antitumor activity, and one study concluded that anthocyanidins may demonstrate chemotherapeutic activity against breast cancer.

When it comes to heart disease, anthocyanidins help reduce high blood pressure and improve the body’s ability to metabolize fat. In tests on rabbits, anthocyanidins demonstrated significant reduction in the development of atherosclerosis. They also appeared to protect against heart attacks linked to certain asthma drugs.  They even have stronger antioxidant properties than either vitamins C or E.

Adapted from The Phytozyme Cure. Subscribe to my free e-newsletter World’s Healthiest News to receive monthly health news, tips, recipes and more. Follow me on Twitter @mschoffrocook and Facebook.  Copyright Michelle Schoffro Cook, PhD.

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Anne S.
Anne S.3 years ago

Thank you for sharing. I have been reading about the many medical benefits of berries lately, so they seem to be a good choice for any number of reasons. In addition to diet, I think that stress reduction and lifestyle also play a role in slowing brain aging. Belleruth Naparstek has a list of tips ( based on research that I have been trying to follow.

Norma V.
Norma Villarreal3 years ago

Too bad strawberries are so porous and retain pesticides and toxins.

Christa Deanne
Oceana Ellingson3 years ago

Yummy and good for you

Robert B.
Robert B.3 years ago

Blueberries are a great wonder food.

Lindsay Kemp
Lindsay Kemp3 years ago

Interesting - thanks

Spirit Spider
Spirit Spider3 years ago


Michael Barth
Michael Barth3 years ago

Thanks for sharing. Does anyone know if this extends to jams (e.g. strawberry jam, blueberry jam, etc.)?

Miranda Parkinson

Nature supplies all our needs, lets nature her too! If we eat these amazing berries we would not have to worry about alzheimers or dementia. How great is that!

Patricia H.
Patricia H.3 years ago

thanks for sharing

Juliet Defarge
judith sanders3 years ago

Yay for stuff we don't have to import! Right now there's so much hype about acai- even though you can get the same nutrients from combinations of other berries. A lot of forest along the Amazon river has been cleared for acai plantations. Let's stop this fad now.