D-Rise 2000 Capsule contains cholecalciferol (Vitamin D3) which is a fat-soluble vitamin, that helps the body to absorb calcium and phosphorous found in food and supplements. Vitamin D is made by the body when the skin is exposed to sunlight. Sunscreen, protective clothing, limited exposure to sunlight, dark skin and age may prevent getting enough vitamin D from the sun, thus leading to vitamin D3 deficiency. Thus, vitamin D3 in D-Rise capsule is essential for calcium absorption in the body.