Does Green Coffee Bean Extract Work? Green Coffee Bean Extract is one of them.. it is currently among the worlds most popular weight loss supplements. As the name implies, this supplement is extracted from green coffee beans. It contains a substance called Chlorogenic Acid, which is believed to be responsible for the weight loss effects. Coffee beans are naturally green, but they are usually roasted before being sold to the consumer. This is the process that turns them brown. As we know… coffee beans are loaded with antioxidants and pharmacologically active compounds. Two of the most important ones are Caffeine and Chlorogenic Acid. Chlorogenic Acid is believed to be the main active ingredient in green coffee beans. That is, the substances that produces the weight loss effects. Unfortunately…. most of the chlorogenic acid is removed when coffee is roasted. For this reason, regular coffee beans wont have the same effect (although there are plenty of other good reasons to drink coffee if you enjoy it). Bottom Line: Green coffee beans are the same as regular coffee beans, except that they havent been roasted yet. They are high in a substance called Chlorogenic Acid. How Does Green Coffee Bean Extract Work… What is The Mechanism? Green coffee bean extract does contain some caffeine. Several studies have shown that caffeine can boost metabolism by up to 3-11%. However, the main active ingredient is believed to be the chlorogenic acid. Several controlled trials in humans show that green coffee bean extract can lead to significant weight loss. However, At the end of the day, the only thing that is proven to lead to long-term results is changing your diet and lifestyle. In this regard, cutting carbs and eating more protein seem to be the most effective, as well as emphasizing real, unprocessed foods. To get a boost accompany it with Green Coffee Veg Capsules