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Decaffeinated Coffee May Be Harmful To Heart
New Scientist ^ | 11-16-2005 | Gaia Vince

Posted on 11/17/2005 10:50:32 AM PST by blam

Decaffeinated coffee may be harmful to heart

15:00 16 November 2005
NewScientist.com news service
Gaia Vince

Decaffeinated coffee may have a harmful effect on the heart by increasing the levels of a specific cholesterol in the blood, researchers say. Their explanation is that caffeine-free coffee is often made from a type of bean with a higher fat content.

Robert Superko, at the Piedmont-Mercer Center for Health and Learning in Atlanta, Georgia, US, and colleagues looked at the effects of coffee on 187 people. The group was split into three similar-sized groups for the three-month study: one group drank three to six cups of caffeinated coffee per day; one drank three to six cups of decaffeinated coffee per day; and a control group drank no coffee. US coffee drinkers drink an average 3.1 cups of coffee per day.

The researchers analysed blood samples from the groups before and after the study to determine the levels of cholesterol and non-esterified fatty acids (NEFAs) in the blood – key indicators of heart disease risk.

To their surprise, the researchers found the decaffeinated group had experienced an 18% rise in NEFAs in the blood and an 8% rise in apolipoprotein B – a protein associated with a cholesterol linked to cardiovascular disease. This was not seen in the other two groups.

“I believe it’s not caffeinated but decaffeinated coffee that might promote heart disease risk factors,” Superko says. “The heart risk is not great – the fatty acids can be burned off easily by exercising. But someone with high-cholesterol, who drinks four or five cups of decaffeinated coffee a day, might want to think about cutting down.”

Healthy option?

When the researchers analysed the coffees used in the study, they found that the caffeinated and decaffeinated coffees were made from a different bean. The decaffeination process extracts the compounds that give coffee flavour, so it is often made from a stronger flavoured bean, called Robusta. Caffeinated coffees are usually made from a bean called Arabica.

“The chemical composition of the two beans is very different. Robusta contains a much higher content of fats, called diptenes, which stimulate fatty acid production in the body,” Superko told New Scientist.

“The coffee industry is selling more and more decaffeinated coffee because people think it’s healthier, but if you have high cholesterol, it may not be.”

Not so simple

However, the team also found changes in another type of cholesterol called HDL2, high levels of which are associated with a reduced risk of heart disease. Although the average level of HDL2 did not differ between the three groups, it did change significantly within the decaffeinated group depending on the participants’ weight, as represented by their body mass index (BMI).

Overweight people – with a BMI of more than 25 – saw their HDL2 increase by 50%, whereas those with BMI less than 25 showed a drop in HDL2 of about 30%. “It is not a simple story of one type of coffee being good and the other bad,” Superko says. “Those who are overweight but have normal apolipoprotein B levels might consider the potential benefit of drinking decaffeinated coffee over caffeinated coffee.”

A spokesperson from the British Heart Foundation cautions that the study was quite small and short-term. “It is too soon to draw any firm conclusions about the use of coffee to reduce risk of heart disease,” she said. “And the study examined the effects of drinking three to six cups of coffee daily, so it is not relevant to those people who enjoy a coffee once or twice a day.”

The research was presented at the American Heart Association Sessions 2005, held in Dallas, Texas.


TOPICS: News/Current Events
KEYWORDS: caffeine; coffee; decaffinated; getarealbrew; harmful; health; hearth; itsforwimpstoo; may
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1 posted on 11/17/2005 10:50:33 AM PST by blam
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To: blam

Caffee Kiills. ~;^D


2 posted on 11/17/2005 10:51:54 AM PST by billhilly (If you're lurking here from DU (Democrats unglued), I trust this post will make you sick.)
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To: blam
Stan the java man says......

Image hosted by TinyPic.com

NODECAFFORMETHANKS!!!!!!!
3 posted on 11/17/2005 10:55:04 AM PST by cripplecreek (Never a minigun handy when you need one.)
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To: blam

More like the grease-filled donut you dunk in the coffee is the problem!


4 posted on 11/17/2005 10:56:52 AM PST by kaktuskid
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To: blam


Will this never end!


5 posted on 11/17/2005 10:58:43 AM PST by PetroniusMaximus
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To: blam
Their explanation is that caffeine-free coffee is often made from a type of bean with a higher fat content.

Decaffeinated is not the same as caffeine-free.

6 posted on 11/17/2005 10:59:39 AM PST by Republican Wildcat
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To: blam
Decaffeinated Coffee May Be Harmful To Heart

It's also harmful to testosterone.

7 posted on 11/17/2005 11:08:45 AM PST by BostonianRightist (Justice: A Dish Best Served Swiftly)
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To: neverdem

Health and Science ping.


8 posted on 11/17/2005 11:09:11 AM PST by BostonianRightist (Justice: A Dish Best Served Swiftly)
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To: teenyelliott

Coffee ping


9 posted on 11/17/2005 11:12:03 AM PST by BostonianRightist (Justice: A Dish Best Served Swiftly)
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To: PetroniusMaximus

Will this never end!


No.


10 posted on 11/17/2005 11:13:59 AM PST by Taffini (My cat hates your cat)
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To: blam
Since no one else has said it, I will...

WE'RE ALL GONNA DIE!!!!

:)

To their surprise, the researchers found the decaffeinated group had experienced an 18% rise in NEFAs in the blood and an 8% rise in apolipoprotein B – a protein associated with a cholesterol linked to cardiovascular disease. This was not seen in the other two groups.

Why are the scientists always so astonished to discover that when one slaps mother Nature, she usually slaps back!

11 posted on 11/17/2005 11:17:29 AM PST by MamaTexan (I am NOT a 'legal entity', nor am I a *person* as created by law!)
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To: blam
Decaf kills. Caffeine kills. Salt kills. No, it doesn't. Sugar kills. Sugar substitutes kill. Tea kills. Steak kills. Chicken kills. Pork kills. Veggies kill... that is, unless they're free range veggies. Bacteria kills. Irradiated food kills. Undercooked foods kill. Overcooked foods lack tast, but they make up for it by killing you. Fast foods kill you. Red Dye #3 kills you. Vitamins are good for you, unless they kill you. Water, now that's good for you. But too much may kill you. Medications can kill you unless you follow the directions to the letter... but even then, they will kill you.

You know what kills you?

Medical Studies. Make your head explode.

12 posted on 11/17/2005 11:17:35 AM PST by theDentist (The Dems have put all their eggs in one basket-case: Howard "Belltower" Dean.)
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To: Taffini

It reminds me of "1984"...

"We are at war with Eurasia; we have always been at war with Eurasia..."


13 posted on 11/17/2005 11:19:17 AM PST by PetroniusMaximus
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To: BostonianRightist; Bloody Sam Roberts
Decaffeinated coffee may have a harmful effect on the heart

And it tastes like crap. Useless brown water. It's like drinking that near-beer stuff.

Thanks for the ping!

Hey, Sam, we're gonna live forever!!!!

14 posted on 11/17/2005 11:22:18 AM PST by teenyelliott (Soylent green should be made outta liberals...)
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To: PetroniusMaximus

someday they will come up with the truth and no one will be listening


15 posted on 11/17/2005 11:22:55 AM PST by Taffini (My cat hates your cat)
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To: theDentist
Do you know they found in rat studies that if you drink forty two liters of coke a day, you might die???

Hey, gubmint grant money has to go to something to make these buffoons look productive.

16 posted on 11/17/2005 11:24:29 AM PST by teenyelliott (Soylent green should be made outta liberals...)
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To: theDentist
I'm surprised you didn't include "flouride in your list"...LOL.

sw

17 posted on 11/17/2005 11:25:50 AM PST by spectre (Spectre's wife)
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To: teenyelliott

I recall once long ago when a study came out that beef was bad for you. Some reporter (when they did their jobs) pursued the story and found that the study was funded by the Chicken industry. Since then I always want to know who peoposed the study, who funded it, and why.


18 posted on 11/17/2005 11:27:48 AM PST by theDentist (The Dems have put all their eggs in one basket-case: Howard "Belltower" Dean.)
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To: spectre

Must have been either an oversight, or I am in the Flouride Industry's pocket.


19 posted on 11/17/2005 11:31:55 AM PST by theDentist (The Dems have put all their eggs in one basket-case: Howard "Belltower" Dean.)
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To: blam

Decaffeinated coffee... Just like drinking non-alcoholic beer...What is the point? What-is-the-freggin`-point? Is it people want to fool others into thinking they are drinking the real thing?


20 posted on 11/17/2005 11:38:06 AM PST by WillamShakespeare (What is a John Kerry?)
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