The Vitamin D3 in this product is the same form produced by the body when our skin is exposed to sunlight. Vitamin D is required to promote calcium absorption, which helps to maintain healthy bones and teeth. Vitamin D also supports a healthy immune system. This formulation provides Vitamin D3 in convenient, easy to swallow vegetable capsules. , SUGGESTED USE: As a dietary supplement for adults, take one (1) vegetable capsule daily, preferably with a meal or as directed by a healthcare practitioner.