Jarrow Formulas Vitamin D3 1000 IU - 100 Softgels, Pack of 2 - Bone Health, Immune Function & Calcium Metabolism Support - 200 Total Servings, Provides Cholecalciferol - Vitamin D3 provides cholecalciferol, which is the form produced by the (human) skin in response to UVB exposure (sunlight), and may also improve vitamin D status better than equivalent amounts of ergocalciferol., Immune & Bone Support - Vitamin D3 is converted to calcitriol in the body, which enhances dietary calcium + phosphorous absorption, supports production of osteocalcin (an important structural protein in bone) & supports a healthy immune response., Convenient Softgels - Each softgel delivers 1000 IU of vitamin D. Take 1 softgel per day, or every other day, with a fat-containing meal, or as directed by your qualified healthcare professional., Superior Nutrition & Formulation - The goal of Jarrow Formulas is to promote optimal health with high-quality, effective, affordable, and superior formulation of dietary supplements. Our customers can be assured of purity, value, and potency., ,