Vitamin D-10,000Thornes D 10,000 contains 10,000 IU of high quality vitamin D3. Although it is well known that direct sunlight is a natural source of vitamin D, many individuals, especially the elderly, dont get enough vitamin D from sunlight or from their diet. Be sure you get the vitamin D your body needs with Thornes easily absorbed Vitamin D 10,000. Benefits of Thornes Vitamin D 10,000: Supports healthy teeth and bones* Promotes lean muscle mass and helps