Calcium is a mineral found in many foods. The body needs calcium to maintain strong bones and to carry out many important functions. Almost all calcium is stored in bones and teeth, where it supports their structure and strenght. Get your calcium for any life-stage here at Vitamin Tree. Try out Nature’s Way Calcium & Magnesium Citrate complete with Collagen and Vitamin K2 for a highly absorbable form of this ultimate liquid bone support!