Green Coffee Extract
Recently, Green Coffee Extract also known as Green Coffee Bean Extract (GCBE) has been the talk of the media because various studies showed it helped participants to not only lose body fat, but also promote healthy blood pressure and energy levels. The extract, available in our Wellness Department, even got Dr. Oz’s attention and he too decided to test GCBE’s effects with 100 of his audience members who volunteered for the study.
The supplement industry emphasizes that the adjective “green” (uncooked, unroasted, raw) in “coffee bean extract” because the heat used to produce regular coffee has the potential to break down, to a greater amount, the active compounds that are present in the extract that provide the reported health benefits. Two of the compounds present in Green Coffee Bean Extract that researchers attribute the various health benefits have been identified as Chlorogenic acid and caffeic acid. These acids are present in many common fruits and vegetables such as blueberries, bilberries, strawberries, eggplant, sunflower, pineapples, cabbage, broccoli, echinacea and of course, coffee beans. Plants containing chlorogenic and caffeic acid have been used for years as herbal remedies for different conditions such as arthritis, inflammation, high blood pressure, flatulence and etc. So it really is not that huge of a surprise to scientific studies that have been done supporting these claims.
One such study summarized by the NYU Langone Medical Center, a world-class, academic medical center, refers to a double-blind, placebo-controlled of a 117 males with mildly-high blood pressure (140-160 SBP / 90-100 DBP) who were given GCBE at different dosages. After 28 days results showed that the group of males given 93 and 185 mg. of GCBE per day showed significant improvement in blood pressure compared to the placebo-controlled group.
Another randomized, double-blind, placebo-controlled study on the weight-loss effects of GCBE was conducted at the University of Scranton in Pennsylvania. This study was carried out for a period of 22 weeks and the results were presented at the American Chemical Society in San Diego. The study involved a group of 16 over-weight adults between the ages of 22-26. These adults were divided into three groups, who were either given a placebo, 700 mg (350 mg in two servings) or 1,050 mg (350mg in tree servings) of GCBE per day. The adults were asked not to exercise or change their dietary habits at all. The participants consumed an average of 2,400 calories per day and taking into consideration, their activity level and body-mass composition, the average amount of calories burned for energy came out to be around 400 calories. On average, all of the participants had lost 17 lbs. in body weight. These participants were also reported to have lost an average of 10.5% of their total body weight and an average of 17% of their total body fat. No side effects were throughout the study.
How are these results possible? Researchers have discovered that Chlorogenic acid has been found to prevent the release of glucose from the liver into the bloodstream, thus promoting the rest of the body to metabolize stored fat into glucose so that it can be used as an energy source. By helping to prevent the release of glucose into the bloodstream, those eating carbohydrate-rich diets will have a lower risk associated with the consequences of spikes in blood sugar levels. Examples of common consequences associated with high blood sugar levels are high blood pressure, increased insulin levels, weight gain and fatigue. Since Green Coffee Bean extract happens to be a rich source of chlorogenic and caffeic acid it is used and marketed in the supplement industry over other sources. It should be noted that GCBE naturally contains around 10% caffein in weight so a 400mg serving of GCBE can contain around 40 mg of caffein, just about half a cup of regular coffee.