Nature s Bounty Calcium is the primary mineral responsible for strong bones.* The body also uses Nature s Bounty Calcium for proper muscle contraction and nerve function  and is involved with heartbeat regulation.* Vitamin D assists in Calcium absorption and maintaining a healthy immune system.* Because the body cannot produce Calcium  a balanced diet  regular exercise  healthy lifestyle choices and adequate intake of Calcium and Vitamin D can play a role in maintaining optimal bone health.*

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