INLIFE Calcium with Vitamin D3 Tablets helps maintain healthy bones and teeth. Each tablet delivers 500mg of calcium and 250 I. U. of vitamin D3. Calcium is essential for strong bones and teeth in children and young adults. It supports contractions of the muscles, transmission of nerves, Secretion of hormones and intracellular signaling. Calcium is lost daily through skin, nails, hair, sweat and urine. This lost calcium is replaced by our body through taking calcium from bones to perform other functions. So, you should get sufficient calcium from your diet or supplements. 99% of calcium absorbed by the body is stored in bones and teeth. How much ever calcium you take in your diet, it won t get absorbed if you don t have sufficient vitamin D levels in your body. Hence both calcium and vitamin D are essential for you. Vitamin D is essential for calcium absorption in the body. It helps to reduce the risk of fractures in elderly patients . Adequate Calcium with vitamin D3 intake as a part of well-balanced diet may reduce the risk of knee related problems. Suggested Usage: Take 2 tablet daily after meals or as directed by a healthcare professional.