Seaweed Calcium for Pets, Vet Recommended, Tested for Purity, 14 ounces 100% Wild Harvested Icelandic Calcareous Marine Algae (Lithothamnion Sp.) 1 teaspoon=1440mg of Bioavailable Calcium FDA GRAS Approved, Kosher Certified, Halal Certified, EU Health Certified, Allergen Free, GMO Free and Vegan Easy to use Tasteless powder may be added to Hot or Cold foods. Laboratory Tested for Impurities YOU ARE BACKED BY OUR 30 DAY MONEY BACK GUARANTEE!