Supports Bone HealthPhosphorous FreeBioavailable Calcium SourceGMP Quality Assured A Dietary SupplementVegetarian Formula Calcium Lactate is a stable and bioavailable form of Calcium. Calcium is a mineral that is essential for the growth and maintenance of healthy bones and teeth. Calcium is also critical to many body functions, including muscle and nerve control, blood clotting and blood pressure regulation. NOW Calcium Lactate Powder is free of phosphorous and contains no excipients or fillers.