Bone & Immune Health. 1,000 IU Per Gummy. NOW Vitamin D3 Gummies supply this key vitamin in a great-tasting gummy form. Vitamin D3 is a fat-soluble vitamin best known for its role in the formation and maintenance of strong bones and teeth. Ingredients: 25 mcg (1,000 IU) Vitamin D (as D3 Cholecalciferol), Tapioca Syrup, Cane Sugar, Water, Pectin, Citric Acid, Natural Flavors, Vegetable and Fruit Juice (for color), Sodium Citrate, Sunflower Oil, and Carnauba Wax.