Nature's Bounty Vitamin D3 2000 IU is a dietary supplement containing 150 rapid release softgels. Each softgel provides 50 mcg (2000 IU) of vitamin D3, which helps support strong bones and a healthy immune system. The supplement comes in an easy-to-swallow softgel form for optimal absorption. This vitamin D3 supplement helps maintain adequate vitamin D levels, which is especially important for individuals with limited sun exposure. Vitamin D3 plays a crucial role in calcium absorption and utilization, contributing to bone health and immune system function. The rapid release softgels are designed to quickly release the vitamin D3 for efficient absorption by the body. As with any supplement, follow the recommended dosage instructions on the label.