* Natural * New * Natural D3 * Dietary Supplement * Bone Health & Calcium Absorption * Immune System Health * Rapidly Dissolves in the Mouth * Mason Guarantee - Laboratory Tested This product has been manufactured and packaged in strict conformance with industry and government standards. Vitamin D helps calcium absorption in the body to support strong bones and teeth. High strengths also help in maintaining a healthy immune system. Studies suggest increased Vitamin D doses per day may promote colon health.