Source Naturals, Coral Calcium & Magnesium 2:1 Ratio, 180 TabsProduct Description Considered as Dietary Supplement ECO Friendly Product Benefits Ingredients Supplement FactsServing Size: 3 TabletsServings Per Container: 30 Amount Per Serving %DV Calories 5 Total Carbohydrate 1 g <1%* Dietary Fiber 1 g 4%* Vitamin D 3 (as cholecalciferol) 400 IU 100% Calcium (from coral) 1,200 mg 120% Magnesium (as magnesium chelate, oxide, citrate & naturally occurring from coral) 600 mg 150% Sodium 10 mg <1% Coral Calcium 3. 4