Vital-D 20000 IU is a high-potency vitamin D₃ supplement that provides 20000 IU of Cholecalciferol in each capsule. Vitamin D₃ is a critical nutrient for calcium and phosphorus absorption, essential for maintaining healthy bones and promoting immune system health. This supplement is particularly useful for correcting severe vitamin D deficiency and is often prescribed when higher doses are needed for rapid replenishment.