what is having decreased calcium called
When blood calcium levels get low (hypocalcemia), the bones release calcium to bring it back to a good blood level. When blood calcium levels get high (hypercalcemia), the extra calcium is stored in the bones or passed out of the body in urine and stool. The amount of calcium in the body depends on the amount of: 1  Calcium you get in your food. 2  Calcium and vitamin D your intestines absorb.