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Licorice
Real licorice, which comes from the root of the plant Glycyrrhiza glabra , tastes just as sweet as the impostors but packs a bigger punch. Since ancient times, people have used licorice -- or, more to the point, its active ingredient, glycyrrhizic acid -- for coughs, colds, and other ailments, and modern herbalists claim it also speeds the healing of stomach ulcers and prevents cancer.
