Swanson ® D3 is a dietary supplement in capsules containing vitamin D 2000 IU in the form of cholecalciferol. Each capsule of the preparation provides 50 pg, i.e. 1000% of the reference value of vitamin D intake for an adult. Properties of vitamin D Vitamin D contributes to the proper functioning of the immune system. In addition, it also helps the proper absorption of calcium and phosphorus and the maintenance of healthy bones and teeth, as well as the proper functioning of muscles. Vitamin D also plays a role in the process of cell division. The Swanson® dietary supplement formula can be a valuable source of vitamin D, which is important for maintaining adequate immunity in the body. The beneficial effect resulting from the declared action occurs when consuming 1-2 capsules per day. A large package of Swanson ® Vitamin D3 2000 IU Higher Potency formula contains up to 250 gelatin-coated capsules.