Ditamin Adult Vitamin D 1000 Iu Drops Contain Vitamin D3 (Cholecalciferol), Providing 1000 Iu Of Vitamin D Per Drop. Vitamin D Is Essential For Maintaining Bone Health, Supporting Immune Function, And Promoting The Absorption Of Calcium In The Body. This Formulation Is Specifically Designed For Adults To Help Meet Daily Vitamin D Needs, Particularly For Those Who May Have Limited Sun Exposure Or Dietary Intake.