Coffee Day: A healthy pick-me-up?

Coffee Day facts

The "Coffee Day" was celebrated here last Saturday. The Germans' favorite drink has so far been largely classified as harmful to health. But there is also more recent knowledge about a multitude of positive effects of coffee consumption.

Coffee Day Since 2006, the “Coffee Day” has been celebrated every first Saturday in September. The organizing German Coffee Association describes the day of the campaign as follows: "On Coffee Day, numerous campaigns and events all over Germany make it possible to experience different facets of coffee - from lifestyle to tradition, from pleasure to conviviality. Coffee lovers and those who are interested can find out more and celebrate coffee in a new way. ”In this country, a large part of the population believes that coffee is harmful to health because it increases insulin levels, blood pressure and blood sugar, removes water from the body and also that whole cardiovascular system damage. But coffee consumption also shows positive health effects.

Coffee reduces the risk of diabetes In several large-scale studies with up to 120,000 participants, scientists have found that regular coffee consumption can protect against type II diabetes. "Various studies have concluded that the risk of diabetes is lowest for people who drink up to seven cups of coffee a day," said Prof. Dr. Stephan Martin from the West German Diabetes Center in Düsseldorf. This means that men who drink more than six cups of coffee a day have a 50 percent reduced risk of type II diabetes, and women who also drink a lot of coffee reduce the risk by about 30 percent. The scientists assume that the antioxidants, polyphenols or minerals in particular have the protective effect, not the caffeine. Because the effect could be measured in the same way with decaffeinated coffee.

Coffee and green tea protect against stroke A large Japanese study with over 80,000 subjects found a significantly lower risk of stroke among tea and coffee consumers. In summary, the researchers came to the conclusion: "Anyone who drinks tea or coffee frequently reduces the likelihood of succumbing to a stroke." The scientists estimate the efficiency to be around 20 percent. Over a period of 13 years, the study participants were continuously asked about their drinking habits, their weight, tobacco and alcohol consumption, diets and sports activities. The latter factors played an important role in calculating the actual risk because, for example, a lack of exercise and a high-fat diet negatively affect the risk of stroke.

Positive effect on the liver The likelihood of suffering from liver disease also decreases with daily coffee consumption, although it is not clear whether the positive effect can be attributed to the caffeine contained or to the antioxidants. However, the results of the research relate exclusively to people who are at an increased risk of such diseases anyway (e.g. alcoholics, overweight people). Professor Christian Strassburg of the University Hospital Bonn recently pointed out at a congress of the Federal Pharmacy Chamber in Merano that two cups of coffee a day would have a positive effect on the liver. However, as sometimes assumed, the organ cannot be protected from excessive alcohol consumption.

Caffeine in coffee against Alzheimer's Apparently, drinking coffee regularly can reduce the risk of developing Alzheimer's disease. Researchers at the German Research Center Jülich came to this result in a scientific study. The caffeine contained in coffee works in those areas of the brain that are involved in Alzheimer's disease. The result is not new, as previous research has found that eating coffee produces a lower risk of Parkinson's and Alzheimer's disease. For the first time, scientists at Forschungszentrum Jülich were able to localize where the active ingredient caffeine in coffee works in the human brain. However, the substance is not only found in coffee, but also in black tea and chocolate.

Everything just hypotheses? However, experts also believe that such nutritional observation studies only provide hypotheses that sound exciting on the one hand, but on the other hand are often over-interpreted. A recommendation, for example, to drink coffee to promote health can only be given if clinical studies prove its "effectiveness". Graduate nutritionist and coffee drinker Uwe Knop said last year: "Enjoy your coffee if you like it and enjoy it - but better not believe the numerous reports that they reduce your risk for 'with more than four cups a day' Diabetes, depression, cancer, Alzheimer's, gout, stroke and heart disease! ”(Ad)

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