GNC Vitamin D-3 1000IU 180 CapGNC VITAMIN D 3 1000IU 180 CAP PRODUCT DESCRIPTION: GNC Vitamin D 3 1000 IU is a high quality supplement designed to support bone health, immune system function, and overall well being. Each capsule provides 1000 IU (International Units) of Vitamin D3, a highly bioavailable form of Vitamin D that is essential for the bodys absorption of calcium and phosphate. It helps maintain healthy bone structure, supports muscle function, and promotes a healthy