Calcium is the most vital element for proper growth and health for animals. It is best used for the better development of bones and skeletal structure. Calcium prevent many severe diseases. It works as a messenger in cell signalling pathway throughout the body and promotes better functioning of cells, transmission of nerve signals, secretion of hormones, muscles contraction and relaxation. Its deficiency in the body can cause severe health issues. Calcium is obtained by utilizing better and healthy feed which is able to provide better nutritional value to the body. If the feed fails in providing the required amount of calcium there is immediately requirement of external calcium supplementation which can replenish the calcium deficiency. Calavian is one the recommended calcium supplement which is used in this situation. Its composition composed of calcium gluconate, vitamin D3, calcium D saccharate which are some vital calcium compound that are very beneficial in removing calcium deficiency. With the proper usage it benefits the body in many ways. It is one of the best highly bio available calcium supplement.