Features Vitamin D helps to: Maintaining healthy bones and teeth. Proper functioning of the immune system. More efficient absorption of calcium and phosphorus. Good muscle function.ingredients Vitamin D3 (cholecalciferol) 30mcg (1,200IU) - 600% RDA Use Take 1 capsule daily with a meal or as directed by your doctor. Consult your doctor if you are pregnant, breastfeeding, taking medication, or have any health problems.