Shelcal HD is a medicine prescribed to treat conditions such as osteoporosis, Osteomalacia, rickets which may happen as a result of low calcium levels in the body. Get to know how Shelcal HD medication works, side effects, precautions before using, and contraindications where Shelcal HD is not suggested. Role of Calcium in our body Calcium plays an essential role in the body. It is necessary for normal functioning of cells, muscle, nerves, and bone. Our body will take calcium from bones if sufficient amount of calcium is not available in the bloodstream, thereby weakening bones. Hence it is important to provide the calcium necessary for the body from external sources either by diet or by supplementary form. D vitamin is essential to enable the body for phosphorous and calcium absorption. Calcium, Vitamin D, and Phosphorus play an important role to keep bones healthy. Calcium and Vitamin D are also essential for fetal development especially for the development of bones during preg...