Nature's Bounty D3 5000 IU is a high-potency vitamin D supplement containing 150 softgel capsules. Each softgel provides 5000 IU (125 mcg) of vitamin D3 (cholecalciferol) to support bone strength, immune health, and overall wellness. This supplement comes in an easy-to-swallow softgel form for optimal absorption, as vitamin D3 is fat-soluble. The bottle contains 150 doses when taken as directed. Vitamin D3 plays an essential role in calcium absorption, bone mineralization, and maintaining a healthy immune system. The dark bottle helps protect the supplement from light degradation to maintain potency. As with any high-dose vitamin supplement, this product should be taken under medical supervision.