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September 17 2000
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Coffee May Damage Blood Vessels

 

Drinking coffee has potentially harmful effects on blood vessels, according to new research. Australian researchers presented data linking caffeine consumption with alterations in the aorta, the main artery supplying blood to the body.

  • In the study, 18 middle-aged healthy volunteers consumed 250 mg of caffeine (equivalent to 2 or 3 cups of coffee).

  • The results showed that caffeine led to a loss of aortic elasticity, and raised blood pressure.

In another study of fifteen healthy volunteers, Swiss researchers measured blood pressure, heart rate and other parameters before and after drinking coffee (triple espresso), decaffeinated triple espresso, getting an intravenous infusion of caffeine, or placebo.

The results showed, for the first time, that coffee drinking results in a pronounced blood pressure increase, although this effect was only apparent in non-habitual coffee drinkers, but not in regular coffee drinkers.

22nd Congress of the European Society of Cardiology August, 2000



Dr. Mercola Dr. Mercola's Comments:

Caffeine is the most widely used drug in the world. While I believe that coffee and caffeine are far less dangerous than fruit juice or soda, it is still wise to limit, and if possible, eliminate its use.

This is becoming increasingly clear for women, as coffee should NEVER be consumed during pregnancy. It also appears that coffee consumption is associated with increased estrogen levels, which means an increase for breast and endometrial cancer.

Coffee has been previously associated with increased risk of stroke and rheumatoid arthritis.

One can use a product called Water Joe that is basically bottled water with caffeine added to help you wean off of the coffee. If you stop coffee cold turkey you will likely develop a severe headache from going through caffeine withdrawal.

If you simply MUST drink coffee here are a few tips to help reduce the chances of harmful effects:

  • Use organic coffee - Coffee is a heavily sprayed crop, so drinking organic coffee might reduce or eliminate the exposure to toxic herbicides, pesticides, and fertilizers. The only drawback is that the countries where coffee is produced probably have less control and monitoring for compliance to organic practices. You will also be helping to protect the health of the people working in the coffee fields, as you will be helping to reduce their toxic exposure as well.

  • "Swiss Water Process" decaf - If you are going to drink decaffeinated coffee, be sure that it is one that uses a non-chemical based method of decaffeination. The "Swiss Water Process" is a patented method and is the best choice. Most of the major brands are chemically decaffeinated, even if it says "Naturally Decaffeinated" right on the container. If you are unsure of the methods, contact the manufacturer.
  • Avoid sugar and/or milk - These are actually much worse for you than the coffee itself. Don't compound the detrimental health effects by adding milk or sugar to your coffee.

  • Unbleached filters - If you use a "drip" coffee maker, be sure to use non-bleached filters. The bright white ones, which most people use, are chlorine bleached and some of this chlorine will be extracted from the filter during the brewing process.

Related Articles:

Caffeine Elevates Heart Rate

Caffeine and Children's Tics

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