Unifit Calcium Magnesium & Zinc Tablets with Vitamin D2 & Vitamin K2-7 is for stronger bones, better joint support and the metabolism. The body needs calcium to maintain strong bones. Almost all calcium is stored in bones where it supports their structure and hardness. The body also needs calcium for muscles to move and for nerves to carry messages between the brain and to every part of the body. Presence of zinc and magneisum helps in improving the immunity and metabolism of our body while Vitamin D2 and Vitamin K2-7 helps absorbing calcium at ease and place calcium where it is necessary.