The worldwide consumption of coffee is ever growing in popularity. That has stimulated Applied Food Sciences to study the biological activities of green unroasted coffee. Green coffee beans have been shown to possess antioxidant activity; in fact they contain large amounts of chlorogenic acid and other powerful antioxidants. AFS offers Green Coffee Antioxidant (GCA®), an all-natural bulk extract of these powerful antioxidants for use in products ranging from tablets to food and beverages. GCA is self-affirmed GRAS.