Green Coffee Bean Extract is the extract derived from the unroasted coffee bean. Green Coffee Beans naturally contain a compound called Chlorogenic Acid, which is the active weight loss compound in Pure Green Coffee Beans. Roasting Coffee Beans destroys the Cholorgenic Acid. Recent clinical studies and trials have shown that the specific combination of Chologenic Acid and caffeine are effective for weight loss. Green Coffee Extract was used in the clinical study published in the Diabetes, Metabolic Syndrome and Obesity journal. On average, the participants in that study lost 17 lbs each. That’s 16% of their overall body fat and 10.5% body weight. The full clinical study can be found by clicking here.