Since 1984 Digestion Dietary Supplement Discussion: Pro DGL provides all the benefits of Deglycyrrhizinated Licorice (DGL) and propolis in a great tasting chewable tablet. Beehive products --honey, royal jelly, bee pollen and propolis--have been used as food and medicine for thousands of years. Their healthful benefits continue to be valued today as their nutrients are identified and studied by modern research.