Vitamin D has long been known for its important role in regulating the body's levels of calcium and phosphorus as well as increasing mineralization in the bones. Nordic Naturals Vitamin D3 is cholecalciferol, the natural, most easily absorbed and utilized form of Vitamin D. *Each serving provides 5000 I.U. of Vitamin D3 in extra virgin olive oil.
Note: People consuming more than 2000 I.U. per day should have their vitamin D blood levels monitored by a health care professional.