Vitamin D is essential for absorption of calcium and necessary support for healthy bones and a healthy immune system.* Gluten free. Unconditionally guaranteed for purity, freshness and label potency. No added sugar, salt, yeast, artificial flavors, colors or preservatives. Easy-to-swallow smaller tablet. *This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Product Benefits. Vitamin Supplement. Super Strength*. Strong Bone & Immune Support*. Gluten Free.