Another Cocoa Study Shows Positive Effects on Hypertension

Here’s a study from The Journal of the American Medical Association that shows that cocoa, or more specifically, the polyphenols in cocoa, has a positive effect on blood pressure. It points out several important facts:

• It doesn’t need to be a huge quantity of dark chocolate to have an effect
• The dark chocolate must be taken regularly
• It must be taken on an ongoing basis

The study was performed on a rather small population (44 individuals) with untreated prehypertension (120-139/80-89) or stage 1 hypertension (140-159/90-99) without any other risk factors. According to the study, the prevalence of hypertension decreased from 86% to 68%. The participants were given either 6.3 g of dark chocolate containing 30 mg of polyphenols or the same amount of white chocolate which contained no polyphenols for a period of 18 weeks.

The study also points out that blood nitric oxide levels increased in the test participants. Nitric oxide is what triggers the dilation of the blood vessels and reduces blood pressure.

Here’s the link to the abstract of the study:

JAMA — Abstract: Effects of Low Habitual Cocoa Intake on Blood Pressure and Bioactive Nitric Oxide: A Randomized Controlled Trial, July 4, 2007, Taubert et al. 298 (1): 49

In my opinion, the thing about eating chocolate as a “medicine” is that healthy individuals probably wouldn’t feel any different, even though the polyphenols would be of benefit. Individuals with cardiovascular disease could probably measure an improvement and may feel healthier.

I know that has been the case with me.

Eat Chocolate to Reduce Hypertension?

In the past, I’ve made a few posts regarding dark chocolate and hypertension. Here’s a link to a brief article that reminds us that indeed, research indicates that dark chocolate can improve blood pressure and may improve cholesterol levels and insulin sensitivity.

http://www.ephit.com/coventry_contest/chocolate.htm

The article also points out that processing removes much of the benefits of the chocolate.

If you’d be interested in dark chocolate that is minimally processed (not dutched and is cold pressed), please e-mail me and I’d be happy to send you some information. My contact info is in the “About” page.

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Pills or Food?

My personal feeling has been that eating a food, as close to nature as possible, is better than taking a pill of concentrated essence of whatever. The article below lends credence to that view.

CTV.ca | Antioxidant pills don’t prevent heart disease

The study, done at Brigham & Women’s hospital, followed 8,171 women with three or more risk factors for CVD for over 9 years. Over the course of the study, the women were given either:

• 500 mg vitamin C or a placebo every day
• 600 IU vitamin E or a placebo every other day
• 50 mg beta carotene or a placebo every other day

The researchers found that “There were no overall effects of ascorbic acid, vitamin E, or beta carotene on cardiovascular events among women at high risk for CVD.”

Here’s a link to the abstract of the study.

We’ve seen many studies that show antioxidants have health benefits. However, many of those studies were done in vitro, rather than in vivo. It seems that people are more complex than test tubes!

Many of the clinical trials involving cacao or dark chocolate show health benefits. My own personal experience, while anecdotal, bears out many of the findings. I still plan on posting my experience and results, but not today. One of the reasons I like minimally processed dark chocolate as a “supplement” is that it is a food, rather than a pill that someone has made by attempting to pull out the “good stuff” in the cacao (flavonoids in this case).

Here’s another article that addresses pills v. foods:

The antioxidant myth: a medical fairy tale – health – 05 August 2006 – New Scientist

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Chocolate Sunscreen?

Sounds kinda gross. And wow, would the sand ever stick to you at the beach! Not really:-) This article says the preliminary results of a German study show that eating chocolate rich in cocoa solids and flavonoids (in other words, dark chocolate) can fight skin cancer. Subjects were given cocoa to drink. Half the group got cocoa high in flavonoids, the other half got cocoa that tasted the same, but was much lower in the flavonoids.

All subjects were then exposed to UV light. The subjects that received the cocoa high in flavonoids did not redden as much as the other group and their skin was smoother and moister.

Here’s a link to the article:

Food for Thought: Chocolate as Sunscreen, Science News Online, June 10, 2006

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Cocoa More Important than Penicillin?

Norman Hollenberg, a professor of medicine at Harvard Medical School says that epicatechin, one of the flavonoids in cacao, has such powerful health benefits, it “may rival penicillin and anaesthesia in terms of importance to public health.” He thinks it is so important it should be considered a vitamin.

He has spent years studying the Kuna people in Panama, who drink large amounts of cocoa. He found that four of the five most common killer diseases in the industrialized world are significantly reduced. He attributes that reduction to the high levels of epicatechin in cocoa.

As usual, a link to the article is found below.

ScienceDaily: Cocoa ‘Vitamin’ Health Benefits Could Outshine Penicillin

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