Vitamin D3, 1000 IU, 100 Softgels, Jarrow Formulas

Jarrow Vitamin D 1000 Calcium and Bone Metabolism, Healthy Cell Replication, Immune Function, Breast, Colon and Prostate Protection. Jarrow FORMULAS® Vitamin D3 (cholecalciferol) is derived from cod liver oil and sheep's wool and is free of Vitamin A. Fat-soluble Vitamin D3 is converted by the kidneys into the hormone calcitriol, the active form of Vitamin D3, which affects a variety of target tissues, including bone, intestine, muscle, brain, skin and immune cells.