How important is Calcium & Vitamin D? ?Calcium has a structural role in bones and teeth; Vitamin D increases absorption of calcium ?An adequate intake of Calcium can support the development and preservation of bone mass Dosage: Adult - One chewable tablet twice daily; The tablets can be chewed or sucked, can be taken with or without food and drink. Or as directed by doctor. If you have renal calcium stone formation, do not take this product. Store below 25 degrees and keep out of the reach of children. Store in tightly closed original container in order to protect from moisture and light. Calcichew D3 Chewable Tablets 500mg 60 tab. 500mg Calcium + 400IU Vitamin D3