NOW VIT D-3 400 IU 180 CTNOW VIT D 3 400 IU 180 CT PRODUCT DSECRIPTION: TASTY CHEWABLE FORM HELPS MAINTAIN STRONG BONES: 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. THE SUNSHINE VITAMIN SUPPORTS IMMUNE SYSTEM: As more people avoid sun exposure, vitamin D supplementation becomes even more necessary to ensure that your body receives an adequate supply. CLASSIFICATIONS