Calcichew Tablets contain the active ingredient calcium carbonate a calcium salt which is designed to supplement calcium in the diet. When calcium is low in the body calcium supplements are needed as it is a requirement for healthy and strong bones. Calcium can be found in a variety of milk and dairy products as well as spinach and nuts. Calcium requirements are usually met with daily diet but there are times when the amount of calcium needed in the body is increased such as; during growth, pregnancy, when breastfeeding and also with advanced age. Calcium supplements are also used for conditions such as osteoporosis which affects the strength of the bones. It can also be used in patients with kidney failure to bind to phosphate consumed in the diet.