NOW Vitamin D-3 1000 IU is a high-potency dietary supplement containing 180 softgels. This non-GMO formula provides vitamin D3 (cholecalciferol) to support bone health and immune system function. Each softgel delivers a measured 1000 IU dose for optimal absorption. The product comes in an easy-to-use bottle containing 180 softgel capsules. Vitamin D3 is the same form of vitamin D that is naturally produced by the body when skin is exposed to sunlight. This supplement is designed to help maintain adequate vitamin D levels, especially important for those with limited sun exposure or increased needs. The non-GMO formula provides structural support for maintaining strong bones while supporting immune system health.