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Coffee Bean Diet Results in Fast Weight Loss Announced at American Chemical Society

Tim Boyer's picture

At the 243rd National Meeting & Exposition of the American Chemical Society (ACS), researchers reveal a startling finding from a weight loss study that showed how that an extract from green (unroasted) coffee beans resulted in significant weight loss in obese participants in a short period of time.

In the study, 16 participants who were either diagnosed as being overweight or obese were tested via a crossover method of study. A crossover study is one in which participants are divided into test compound and placebo control groups that switch their group type during a set time limit within a study. The reason for alternating between taking an active test compound and a placebo is that it allows the participants to act as their own controls—especially in a study where the number of participants is relatively small.

In this study there were three groups consisting of a high-dose (1050 milligrams) green coffee bean extract group, a low-dose (700 milligrams) green coffee bean extract group and a placebo group. Members of each group took their designated extract or placebo for six weeks before cycling onto a different extract or placebo. A two week “washout period” was inserted between each switch from one group to the next.

During the study, all participants exercised regularly and ate a low-fat healthy diet that was monitored closely.

“Their calories, carbohydrates, fats and protein intake did not change during the study, nor did their exercise regimen change,” says Joe Vinson, Ph.D., a researcher involved in the study.

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After the 22-week study period ended the researchers found that the participants lost an average of 17 pounds that consisted of an average of a 10.5 percent decrease in overall body weight and a 16 percent decrease in body fat.

Not only was the average amount of weight loss significant, but the weight loss might have been even faster had the participants not received the placebo and the lower dose of green coffee extract during 2/3 of the study period.

The researchers believe that the active weight loss component of the green coffee beans is a natural chemical compound called “chlorogenic acid” that is present in unroasted coffee beans. Chlorogenic acid, however, breaks down when coffee beans are roasted and therefore is hypothesized to be the reason why drinking brewed coffee from roasted beans is comparatively ineffective toward weight loss.

Extracts of green coffee beans are commercially available to the public and is expected to rise in popularity as an effective and safe weight loss nutraceutical.

“Based on our results, taking multiple capsules of green coffee bean extract a day — while eating a low-fat, healthful diet and exercising regularly — appears to be a safe, effective, inexpensive way to lose weight,” stated Dr. Vinson at the American Chemical Society meeting held here this week.

Image Source: Courtesy of MorgueFile

Reference: American Chemical Society news release



"During the study, all participants exercised regularly and ate a low-fat healthy diet that was monitored closely." -- If you take a bunch of overweight people and put them on a closely controlled diet and exercise regimen, is it any wonder that they lost a bunch of weight?
You are exactly right! This is not how dr. Oz. advertise this product. I have taken this for three weeks and have got nothing but gas and gain two pounds.
The entire experiment was totally flawed. All participants received the placebo, 700mg, and 1000mg dosages. How does that prove anything.
Accepting that this product is safe, why not purchase a small amount and monitor your own absolutely clear study. After all, aren't we looking for our own responses and results? That would clear all wonder and scepticism.
Bogus study...fat people on low calorie healthy food and doing exercise will loose weight extra fast.....eat clean people....THINK!!!
wow, great information about weight loss diets, i did not know that coffee bean can help loose weight,thanks for these facts.
The flaws in this study also include the fact that all participants were in fact put on a specific diet and exercise plan for the course of the study. The diet and exercise was clearly not something the participants were following prior to the study and most certainly contributed to some if not all of the weight loss.