Geri-Care Joint Health Supplement Calcium / Vitamin D 500 mg - 200 IU Strength Tablet 1,000About Geri Care Calcium Vitamin D Joint Health Supplement (1 Unit) Oyster shell calcium and vitamin D work together to keep osteopenia in check or prevent it altogether In one tablet, there are 500 milligrams of calcium and 200 IU of vitamin D Compare to active ingredients in Os Cal 500+D Calcium Supplement with Vitamin D a registered trademark of Aventis Holdings There are 1,000 tablets per bottle Description: Joint Health Supplement Geri Care