Calcium and vitamin D deficiency is one of the major causes of weak bones. Long term lack of Calcium and vitamin D deficiency can cause Osteoporosis which makes the bones porous and fragile. Malaise and fatigue, Pregnancy and lactation & Osteopenia are some of the conditions in which there is loss of Calcium in the body. CaC-1000 PLUS is recommended for everyone to meet the daily Calcium requirement of the body and help maintain strong bones.