Best Naturals, Vitamin D 3, 5000 IU, 360 SoftgelsProduct Description Vitamin D supply this key vitamin in a highly absorbable liquid form. Vitamin D is normally obtained from the diet or produced by the skin from the ultraviolet energy of the sun. However, it is not abundant in food. As more people avoid sun exposure, vitamin d supplementation becomes even more necessary to ensure that your body receives an adequate supply. Product Benefits Dietary Supplement. Supports Bone And Dental Health.