For New Chapter’s organic plant calcium, we travel to Iceland where Red Marine Algae grows rich in calcium plus naturally occurring magnesium and 70+ trace minerals. This plant calcium from Iceland has been researched by international experts in orthopedics, sports medicine, and physiology. And of course we want your body to use that calcium effectively, so we add a proprietary blend of vitamin K2 and D3 that directs calcium right to your bones where you need it, which also helps to maintain artery health.* This is a very different story than your standard calcium carbonate that comes from limestone rock. Experience the magic inside our clinical-strength dose of organic plant calcium for 3-in-1 benefits: strong bones & teeth, joint function & mobility, and heart health.* *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.