* All New Great sweet taste! * Zero Calories, Carbs Glycemic Index * Easy-to-Use packets * Kosher Parve Sweet For You. Sweet For The World. The sweet flavor of Sweetleaf comes from the stevia plant — a natural herb cultivated in the unique climates of South America. Each time you enjoy the goodness of SweetLeaf, you support positive, sustainable production in these countries too. In fact, farmers are learning they can earn more growing stevia than crops used for illegal drugs. That makes the world a safer and healthier place for everyone. The only All Natural Sweetener with Zero Calories, Zero Carbs and Zero Glycemic Index! Use SweetLeaf Sweetener in place of sugar in all your favorite foods and beverages.