This water-miscible "dry" vitamin D comes in a small, easy to swallow capsule. Each capsule provides 5000 IU of vitamin D as cholecalciferol (D3). Vitamin D3 is more bioactive than D2 which is often the form used in other high-potency products. This high-potency product can be used to support healthy vitamin D levels in individuals who are having difficulty getting enough of this essential nutrient. The water-miscible powder is a good choice for patients with fat malabsorption issues.