Bone Health Positive Mood Healthy Immunity Great Orange Taste! Non GMO Verified Third-Party Purity Tested Dietary Supplement 250 mg Soft Gels Healthy bones, mood, and immune system function. Surpasses the Daily Value for Vitamin D Vitamin D has long been known for its important role in regulating calcium and phosphorus levels, and increasing mineralization in the bones. Nordic Naturals Vitamin D3 5000 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.