Supports Bone Health Bioavailable Calcium Source Easy to Swallow Tablet Non-GMO A Dietary Supplement Vegetarian - Vegan Minerals Family Owned Since 1968 GMP Quality AssuredNOW Calcium Lactate is a stable and bioavailable form of phosphorus-free 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 normal muscle contraction, nerve conduction, and vascular function.