D-One 2000 50s Tablets (Vitamin D3 2000 IU) is a dietary supplement that provides 2000 IU of vitamin D3 per tablet. Vitamin D3 is essential for promoting calcium absorption, maintaining bone health, and supporting immune system function. This supplement is commonly used to help maintain optimal vitamin D levels or address deficiencies. The product comes in a bottle of 50 tablets, providing a sufficient supply for individuals needing a higher dose of vitamin D for overall health and wellness.