Calcium is the major structural component of your bones. Since bone is living tissue, it needs a regular supply of calcium to keep rebuilding strong, healthy bones. When you don’t get enough calcium to support your body’s daily functions, your body will borrow it from your bones, contributing to loss of bone density. These supplements delivers calcium in a naturally bioactive, whole-food form derived from ocean algae, sustainably harvested off the pristine coast of Iceland. Made with Plant-Based, Whole Food nutrients for healthy bone support, including Calcium and Magnesium from Marine Algae, Vitamin D3 from Lichen, and Vitamin C from Organic Acerola Cherries.