absorbed. The right dietary minerals in the right balance are essential for bone development in growing bodies and for maintenance of skeletal strength in our later years to reduce the risk of bone fractures and osteoporosis. Calcium and vitamin D for osteoporosis prevention. Helps in the development and maintenance of bones and teeth. Also helps in the absorption and use of calcium and phosphorus. Calcium with vitamin D3 is attached to available krebs cycle minerals for increased absorption and utilization. Krebs cycle minerals are those which bind to organic acids used in the krebs cycle. Such mineral complexes can effectively penetrate cell membranes to transport the minerals inside the cell. This 650 mg tablets comes in 100 count pack.