50% Chlorogenic Acid. Supports Bod Fat Reduction. Powerful Antioxidant. Boosts Metabolism. Promotes Fat Oxidation. Gluten Free. Veggie Capsules. Green Coffee Extract (GCE) – GCE is extracted from coffee beans that have not yet been roasted. There are two key compounds in unroasted coffee beans: caffeic acid and chlorogenic acid. The chlorogenic acid and caffeic acid in GCE have been clinically studied to have several beneficial effects on weight loss. Studies suggest that GCE is an effective nutraceutical in reducing weight in adults for the following reasons: inhibition of fatty acid synthase, increased fat oxidation and increased metabolism.