* #1 Pharmacist Recommended‡ * D3 is the Body"s Preferred Form of Vitamin D * Supports Teeth, Bone and Immune Health * Vitamin D Supplement * Dietary Supplement USP Verified Vitamin D helps support teeth, bone and immune health USP has tested and verified ingredients, potency and manufacturing process. USP sets official standards for dietary supplements. ‡Based on 2011 Pharmacy Times Survey of pharmacists recommending Letter Vitamin Supplements.