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Is coffee good or bad for your health?
How would you like a drug which could lower your risk of Parkinson's disease, diabetes, as well as colon cancer?
Studies indicate coffee reduces the risk for diabetes and Parkinson's
Some studies have shown that coffee may reduce the risk of type 2 diabetes. After analyzing data on 120,000 people over an 18-year period (1), researchers at Harvard have concluded that drinking 1 to 3 cups of caffeinated coffee each day can reduce diabetes risk by several percentage points, compared with not drinking coffee at all.
Even more significant, is the fact that in this study, having 6 cups or more per day slashed men's risk by 54% and women's risk by 30% over those who avoided coffee. This study is the latest of hundreds of studies which suggest that coffee may be something of a health food - especially in higher amounts.
Over the past 20 years, over 19,000 studies have been conducted to examine the impact of coffee on one's health. Overall, the results are good news for the 110 million Americans who routinely enjoy this traditional morning ritual.
Studies indicate that it might be both those factors.
"The evidence is very strong that regular coffee consumption reduces the risk for Parkinson's disease and that in the case of Parkinson's disease, the benefits are directly related to caffeine," according to Dr. DePaulis (2).
Researchers believe that some of coffee's reported beneficial effects are a direct result of its higher caffeine content: An 8-ounce cup of coffee contains about 85 mg of caffeine - about 3 times more than the same serving of tea or soda.
In another study (4), researchers looked at the coffee consumption and caffeine intake in 8,000 Japanese-American men. During the course of the study which lasted nearly 30 years, about 100 men developed Parkinson's disease. The risk of developing Parkinson's decreased gradually as the daily consumption of coffee rose from 4 ounces to more than 24 ounces per day.
In addition, the researchers found the same decrease in risk regardless of the source of caffeine. The men whose intake was less than 2.8 milligrams of caffeine per day were nearly 3 times more likely to develop Parkinson's than those whose caffeine intake was more than 107 milligrams from non-coffee sources.
Coffee and reduced diabetes risks
But other benefits can be derived from coffee which have nothing to do with caffeine. Coffee is loaded with antioxidants, including a group of compounds called "quinines" which when administered to rats in a laboratory, increases their insulin sensitivity. The increased sensitivity improves the body's response to insulin.
Researchers don't know exactly why coffee is beneficial for diabetes. Coffee also contains large quantities of the antioxidants tocopherols and chlorogenic acid, as well as minerals such as magnesium. All of those components have been shown to improve insulin sensitivity and glucose metabolism.
This may explain why in the Harvard study (1), those drinking decaffeinated coffee also showed a reduced diabetes risk, although the reduction in risk was 50% that of those drinking caffeinated coffee.
Coffee and cavities
Some researchers believe another compound called "trigonelline" - which gives coffee its bitter taste and its aroma - may be responsible for giving coffee both anti-adhesive and antibacterial properties which help prevent dental cavities from forming.
Coffee consumption and moderation
However, coffee drinkers who consume filtered coffee should not worry themselves with respect to cholesterol levels, because research indicates that it is the coffee oils which are mainly responsible for the rise in cholesterol in people who drink nonfiltered or boiled coffee.
Most recent large studies show no significant adverse affects on most healthy people, although pregnant women, heart patients, and those at risk for osteoporosis may still be advised to limit or avoid coffee.
One thing is certain: coffee is usually one of the most heavily sprayed crops, and is often contaminated with pesticides, fertilizers and herbicides. Therefore if you do drink coffee, you would be well advised to drink organic coffee only.
It is also a good idea to avoid putting milk and sugar in your coffee. The milk and sugar in your coffee are in fact much worse for you than the coffee itself.
My favorite source for organic coffee can be found here. I find they have the best quality/price ratio online.
(1) Annals of Internal Medicine, January 2004; vol 140; pp 1-8.
(2) Tomas DePaulis, PhD, research scientist, Vanderbilt University's Institute for Coffee Studies; research assistant professor of psychiatry, Vanderbilt University Medical Center, Nashville.
(3) Leitzmann, M. The Journal of the American Medical Association, June 9, 1999, vol 281; pp 2106-2122.
(4) JAMA 2000;283:2674-2679
(5) American Journal of Epidemiology February 15, 2001; 153: 353-362
Work in progress. My neurofeedback app for Android will be available
in the Google Play Store when completed. The Neurosky EEG headset I am wearing in the video is available
Work in progress. My neurofeedback app for Android will be available in the Google Play Store when completed.
The Neurosky EEG headset I am wearing in the video is available here.
© 2004 Healing Daily