Jarrow Formulas , Vitamin D3, Cholecalciferol, Extra Strength, 25 mcg , 200 Softgels JRW-30004 (1,000 IU)

Supports Calcium Metabolism and Bone HealthGluten FreeDietary SupplementBone & JointContains bovine-derived ingredientsJarrow Formulas® Vitamin D₃ (cholecalciferol) may help improve vitamin D status better than equivalent amounts of ergocalciferol (D₂). D₃ is also the form produced by skin with UVB exposure (sunlight). Vitamin D₃ is converted to its hormonally-active form, calcitriol, in the body as needed. Calcitriol enhances dietary calcium and phosphorous absorption, supports the production of osteocalcin (an important structural protein in bone), and supports a healthy immune response.