HealthVit Guduchi Powder 250 mg 60 Capsules (Pack Of 2) Green Coffee Bean Extract is renowned for its ability of the body to burn fat and functions as a potent antioxidant. Green coffee beans infused in the capsules are believed to boost weight loss, if taken daily. These beans are locked with an acid called chromogenic acid which is known to be the key to weight loss as it slows the process of sugar into glucose. Other than this, it also directs liver to burn stored fat, hence escalates fat burning and weight loss.