Originally Published by WebMD, Aug. 4, 2006 and linked in its entirety below.
By Jennifer Warner
Reviewed by Louise Chang, M.D.
© 2006, WebMD Inc. All rights reserved.
Researchers found adults who drank a specially processed cocoa beverage rich in flavonols for four to six days improved their blood vessel function, and older adults appeared to benefit the most.
"Aging is typically associated with deterioration in vessel health, specifically related to function of the critical inner lining, or endothelium," says researcher Naomi Fisher, M.D., assistant professor of medicine at Harvard Medical School, in a news release. "Our findings demonstrate that consumption of this flavonol-rich cocoa can improve the function of blood vessels in a healthy elderly population."
Flavonols are a class of antioxidants found in plant-based foods and beverages — such as cocoa, wine, and tea — that have been increasingly linked to heart benefits.
Chocolate Is Good For The Heart
The results showed blood vessel function improved among both younger and older adults after the cocoa phase. But these improvements were more pronounced in the older group.
Researchers say the findings agree with previous studies that suggest flavonols found in cocoa appear to benefit blood vessel function by influencing the body's production of nitric oxide, which helps regulate blood vessel tone.
SOURCES:: Fisher, N. Journal of Hypertension. August 2006; Vol. 24: pp. 1575-1580.