A pound of weight loss per week - of course , without doing anything for it: green coffee extract is of wasting excess fat. The trend comes from the USA and is also continuing in Germany . What's behind it ?
Fitness knowledge and magazines report on " Slim Trick Green coffee fat burner " or promise " rapid weight loss with extract of green coffee beans ." The trend in the United States at least since the end of last year conquered Germany . On the Internet, offers and promises accumulate around the expensive supplements , obtained from unroasted coffee beans. Critical voices are rare.
A proper boost missed the coffee extract 2012 Joe Vinson of the University of Scranton in Pennsylvania and colleagues. For a study, the researchers divided slimmers are slightly overweight ( BMI between 25 and 30) into three groups and gave them for six weeks, a high dose of green tea extract (1050 mg) , a low dose (700 mg) or ineffective Capsules ( placebos ) . After each run, the participants took 14 days nothing, then they changed the drug.
Five and a half months after the initial investigation showed the analysis : Although the subjects had not changed their eating habits , they weighed an average of eight pounds less , corresponding to a weight loss of about ten percent. They had a BMI decreased by almost three points , and their body fat percentage was decreased by four percentage points. Lost the most weight , participants in the periods in which they took the green coffee extract . As evidence that melts fat extract of green coffee, the study is not good yet, only 16 people had taken part , for a meaningful result too few .
The largest study on green coffee extract was previously held on American TV - a station dedicated to the coffee extract an entire show and tested it equal to 100 female studio guests . The balance sheet: Who got two weeks green coffee extract, lost in this period on average just under a kilo . In the comparison group, there were about 0.5 pounds. However, this study has hooks. Thus, the participants had about diary of their diet. This alone can already lead to changed eating habits .
Chlorogenic acid is to stop oil production
"For decades, we see weight loss pills come and go ," says Volker Schusdziarra , Director of Nutritional Medicine at the Klinikum Rechts der Isar in Munich. " And they always seem to start promising, but then turn out to be a flop . " Even substances such as some appetite suppressant , you know exactly the mechanism of action would have been unsuccessful .
Behind the effect of coffee extract is chlorogenic acid insert that is largely degraded during roasting of coffee and is therefore used mainly in green , unroasted beans. In addition, it is also found in other plants such as artichokes , potatoes or nettles .
Laboratory experiments in mice suggest that chlorogenic acid may inhibit enzymes in high concentrations , and add the converted sugar and fat in the body. In humans , the acid is to prevent the blood sugar levels after eating is skyrocketing and fat to be stored . In a small experiment took trial participants who drank coffee with added chlorogenic acid and sugar , compared to just seven percent less sugar than participants who sugary regular or decaffeinated coffee had been drinking . However, the number of participants was also in this study with twelve subjects again extremely low.
A review of 2011 concludes : "The study results are promising, but all the studies are of poor quality . " Schusdziarra says, " we basically know about the effects of green tea extract anything." Just as little is known about potential side effects.
Eat half
Anyone who reads the product by the manufacturer on the effectiveness of green coffee extract exactly , quickly realizes how little you actually know , " Chlorogenic acid is known to support a healthy diet and weight conscious ," it says . On another web page written by a manufacturer : " Green coffee proves to be perfect supplement for people who want to lose weight permanently with diet and fitness. "
" It's such a total rip off and sprawl on the market," commented Schusdziarra . The only sensible way to fight obesity is to switch the diet . The physician uses a method in which one takes not less, but lower-energy foods. Sport was also only a junior partner in weight loss : " For example, to work off the energy of a quark bag, you have to drive an hour to 15 kilometers per hour wheel . " The fact remains : who is healthy and wants to lose weight must ran himself - to his diet.
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