Vitamin D3 Liquid (1000 IU) from Webber Naturals® delivers fast absorption and dose flexibility! Vitamin D aids the body incorporate calcium into the bones, boosting bone mineral density. Vitamin D deficiency-related bone thinning is common among the elderly, those with dark skin, people who don’t go outside often, or who wear clothing covering most of their skin. Research suggests higher doses of vitamin D may also provide protection against certain cancers.