The Vitamin D3 in this product is the same form produced by the body when our skin is exposed to sunlight. Vitamin D is a fat-soluble vitamin that aids in calcium absorption, which helps to maintain healthy bones and teeth. Vitamin D also supports a healthy immune system. This product utilizes oil from select livers of deep-sea, cold-water fish. The oil has been purified to eliminate mercury and PCB's. This formulation is offered in oil-based softgels to promote optimal absorption and assimilation. , SUGGESTED USE: As a dietary supplement for adults, take one (1) softgel one to two times daily, preferably with a meal or as directed by a healthcare practitioner.