Calcium, total

Despite 99% of calcium being stored in bones, the small amount in blood is vital for immediate body functions. Low calcium can cause muscle cramps, tingling fingers, fatigue, and irregular heartbeat, while high calcium may indicate parathyroid issues, certain cancers, or excessive vitamin D intake, and can cause kidney stones, bone pain, confusion, or excessive thirst. Maintaining adequate calcium and vitamin D intake, regular weight-bearing exercise, and avoiding smoking and excessive alcohol support bone and heart health. Monitoring calcium helps detect imbalances early, providing insight into bone strength and overall mineral balance.