geri-care oyster shell calcium + vitamin d supplement tablets are a dietary supplement designed to provide older adults with an additional source of calcium and vitamin d, which are both important for maintaining healthy bones and muscles. calcium is the primary mineral that makes up our bones, and vitamin d helps the body absorb calcium. this supplement typically comes in the form of small, easy-to-swallow tablets, and is typically taken once or twice a day with a meal. it is derived from oyster shells, which provide a source of calcium carbonate. it is important to speak with a healthcare professional before starting any new supplement regimen. active ingredient: vitamin d-3 200 i.u., calcium 500 mg serving size of active ingredient: adults one tablet, twice a day. purpose: nutritional supplement inactive ingredients: calcium carbonate, cellulose, acacia, maltodextrin, croscarmellose sodium, hypromellose, titanium dioxide, soy polysaccharide, triacetin, sodium lauryl sulfate, talc, mineral oil, starch, sucrose, riboflavin, fd&c blue #1 lake, sodium ascorbate, triglycerides, silica and tocopherols. store at room temperature