Maintain Healthy Bones & Teeth; Vitamin D is required to promote calcium absorption, which helps maintain healthy bones and teeth; Solgar Vitamin D3 Vegetable Capsules provide 55 mcg (2200 IU) in one easy to take veggie capsule Support Your Immune System; Solgar Vitamin D3 (Cholecalciferol) 55mcg (2200 IU) Vegetable Capsules support a healthy immune system and neuromuscular function Premium D3; The Vitamin D3 in this product is the same form produced by the body when our skin is exposed to sunlight; As we age, our bodies may absorb less D3; This formulation provides premium D3 in convenient vegetable capsules