Vegan Kosher Parve Gluten Free Dietary Supplement Bluebonnet s EarthSweet? Chewables Zinc Lozenges 15 mg are formulated with zinc gluconate/citrate along with vitamin C from L-ascorbic acid and sodium ascorbate to support immune health. Sweetened with EarthSweet? a proprietary sweetening mix of fruit powders and sugar cane crystals.