YUZONE’S sacral is a uniquely formulated calcium supplement with activated coral calcium. Coral Calcium provides bioavailable calcium as well as other vitamins & minerals. Coral Calcium is an excellent source of an alkaline form of Calcium that can help to support a healthy acid-base balance. In addition, Coral Calcium has naturally occurring trace minerals that are important for bone health, as well as for optimal enzymatic activity. NOW Coral Calcium is not harvested from living coral reefs or even from the ocean environment, but from above-ground sources in an ecologically friendly manner. In this Coral Calcium formula, vitamin k2-7, Magnesium and Vitamin D3 have been included for their essential roles in bone metabolism. Activated Coral Calcium supplies a synergistic profile of Phytavail Complex essential minerals from pesticide-free, hydroponically grown plants.