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Harvard study links cocoa flavanols to improved brain blood flow; may hold promise for brain conditions including dementia and stroke

  [ 8 votes ]   [ Discuss This Article ] • January 29, 2009

Cocoa flavanols, the unique compounds found naturally in cocoa, may increase blood flow to the brain, according to new research published in the Neuropsychiatric Disease and Treatment journal.*

The researchers suggest that long-term improvements in brain blood flow could impact cognitive behavior, offering future potential for debilitating brain conditions including dementia and stroke.

In a scientific study of healthy, older adults ages 59 to 83, Harvard medical scientists found that study participants who regularly drank a cocoa flavanol-rich beverage [providing 900mg of flavanols daily] had:

• An eight percent increase in brain blood flow after one week,

• And a 10 percent increase after two weeks.

In this first-of-its-kind study, the researchers found both short and long-term benefits of cocoa flavanols for brain blood flow, offering future potential for the one in seven older Americans currently living with dementia.

When the flow of blood to the brain slows over time, the result may be structural damage and dementia. Scientists speculate that maintaining an increased blood flow to the brain could slow this cognitive decline.

"The totality of the research on cocoa flavanols is impressive. This is just one more study adding to an increasing body of literature connecting regular cocoa flavanol consumption to blood flow and vascular health improvements throughout the body," said Harold Schmitz, PhD, chief science officer at Mars, Incorporated, which has supported research on cocoa flavanols for more than 15 years.

"Though more research is needed, these findings raise the possibility that flavanol-rich cocoa products could be developed to help slow brain decline in older age."

The Body of Evidence

Contrary to statements often made in the popular media, the collective research demonstrates that the vascular effects of cocoa flavanols are independent of general "antioxidant" effects that cocoa flavanols exhibit in a test tube, outside of the body.

While research aimed at studying the potential role of cocoa flavanols in the context of blood vessel and circulatory function continues, a number of previously published studies already suggest that the consumption of cocoa flavanols can have important beneficial effects on the function of the body's network of blood vessels.

The body of research not only suggests that cocoa flavanols may provide a dietary approach to maintaining cardiovascular function and health, but also points at new possibilities for cocoa flavanol-based interventions for vascular complications associated with cognitive performance, skin health and age-related blood vessel dysfunction….
* Article Citation: “Cerebral blood flow response to flavanol-rich cocoa in healthy elderly humans,” Neuropsychiatric Disease and Treatment, online Apr 2008, by FA Sorond, et al. To read the full text of this article free, click here.

Source: Aug 18, 2008 news release for Mars Inc., and Mars Botanical, its phytonutrient science division.

Note: This information has not been evaluated by the FDA. It is generic and is not intended to prevent, diagnose, treat or cure any illness, condition, or disease. It is very important that you make no change in your healthcare plan or health support regimen without researching and discussing it with your professional healthcare team.

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