Nutrameltz Vitamin D3 1000 IU is an effective supplementation for those with vitamin D deficiency and proper immune function. Vitamin D enhances calcium absorption building strong bones. This vitamin is not readily available in most foods like most vitamins. The most prevalent source of vitamin D is the sunlight. When exposed to sunlight human body produces Vitamin D. Nevertheless, though it may seem unlikely, vitamin D deficiency is quite a common occurrence in many individuals leading to the need for supplements. Benefits • Strong and healthy bones, teeth and muscles. • Maintain and support immune function. • Helps prevent Vitamin D Deficiency. • Calcium intake with sufficient vitamin D along with regular exercise reduces the risk of developing osteoporosis.