Calcium Carbonate with Vitamin D (500 mg/200 IU) from webber naturals is an ideal supplement for improving and maintaining strong bones and teeth, as well as maintaining optimal overall health. Vitamin D works alongside calcium, not only helping with absorption of the mineral, but also decreasing the likelihood of many deficiency-related syndromes.Recommended Dosage: (Adults) 1 tablet 3 times daily a few hours before or after taking other medications or as directed by a physician.Caution: Keep out of reach of children.