Dark Chocolate May Aid Heart Woes

A Candy Bar A Day Improves Blood Flow To Heart, Study Says

(WebMD)  There is more good news for chocolate lovers. A Japanese study suggests that dark chocolate can improve blood flow to heart muscle.

That is important because improved coronary blood flow mitigates the risk of chronic chest pain, or angina , and heart attacks, says Yumi Shiina, PhD, of Chiba University in Chiba, Japan.

Studies have shown that the sweet treat can also lower your blood pressure and reduce your risk of diabetes , she says.

Shiina credits flavonoids, a group of antioxidant compounds also found in red wine, tea, and fruits and vegetables , with dark chocolate's healthy effects.

Dark Chocolate Rich In Flavonoids
The study involved 39 healthy men who ate a 1.4-ounce candy bar of either dark chocolate or white chocolate daily for two weeks.

Shiina says the dark chocolate was rich in a potent flavonoid known as cacao polyphenol, while the white chocolate contained no flavonoids.

The researchers measured what doctors call coronary flow velocity reserve (CFVR). It's an indicator of the ability of the coronary arteries to dilate and allow more blood flow to heart muscle tissue.

After two weeks, coronary circulation significantly improved in participants who ate dark chocolate. There was no change among those who ate white chocolate.

4 Times As Many Flavonoids
Cacao polyphenol contains four times as many disease-fighting flavonoids per serving than red wine or tea, Shiina says.

That is not to say you can indulge in dark chocolate with impunity, says Sidney Smith, MD, a past president of the American Heart Association and professor of medicine at the University of North Carolina in Chapel Hill.

"You have to balance the fats and calories of the candy bar against the benefits of flavonoids," he tells WebMD.

Shiina says that in the future, development of a cacao polyphenol supplement could overcome the problem.

The study was presented here at the American Heart Association's Scientific Sessions 2007.

[myidoncbs]

I really hate that they always say "dark chocolate", as if milk chocolate or even Cocoa powder like in a Hot Chocolate doesn''t have a similar effect!

Everybody should know that "white chocolate" IS NOT REALLY CHOCOLATE. It does not contain any of the cocoa solids, only the cocoa butter. The flavanoids come from the solids, not from the fat.

[lizardbate]

I love dark chocolates!!!! Hershey Semi-sweet dark chocolate!!!! HHMMMMMMMMMM!

[kandip-2009]

There is a chocolate that is raw cacao with the acai berry for sweetening; it fits all of the parameters of HEALTHY chocolate - and it is gourmet quality! The brand name is Xocai. Check it out at www.mychocolate4life.com.

You can also look at the scientific and medical benefits of dark chocolate on www.mydrchocolate.com website -

[kandip-2009]

There is a chocolate that is raw cacao with the acai berry for sweetening; it fits all of the parameters of HEALTHY chocolate - and it is gourmet quality! The brand name is Xocai. Check it out at www.mychocolate4life.com.

You can also look at the scientific and medical benefits of dark chocolate on www.mydrchocolate.com website -

[ladydischoco]

MXI Corp. manufactures a cold-pressed chocolate that is unfermented, sun-dried, and non-roasted which leaves most of the nutrients (flavanoids) in the cacao. The ORAC score is very high on all the products (3000-4000 per serving). It is decadent chocolate with acai, grape, blueberry and natural sweetners added which is safe even for diabetics. I''m a chocoholic, and it''s the best I''ve ever tasted. Check it out on the web at mxi.myvoffice.com/7081. You''ll be VERY glad you did!!!