Calcium magnesium zinc with Vitamin D supplement is the ultimate blend for bone health.** The target mins formula is made with form amino acids and uses a calcium to phosphorus and calcium to magnesium to support calcium utilization and the bodys availability of calcium.** Vitamin D helps the body absorb calcium, which is crucial for healthy bones, and magnesium helps regulate hundreds of enzyme sIngredients:Supplement FactsServing Size: 3 Tablets Amount Per Serving% Daily ValueVitamin D (as ergocalciferol)200 IU50%Calcium (as calcium hydroxyapatite, citrate, aspartate, alpha-ketoglutarate, lysinate)1,000 mg (1 g)100%Phosphorus (as calcium hydroxyapatite)500 mg50%Magnesium (as magnesium aspartate, oxide, citrate, taurinate, alpha-ketoglutarate)500 mg125%Zinc (as zinc citrate, histidinate, picolinate, alpha-ketoglutarate, aspartate)25 mg167%Other Ingredients: Cellulose, stearic acid, cellulose & glycerin coating, silica, vegetable glaze.