+**Calcitonin**
+Calcitonin is a [hormone](/wiki/hormone) secreted by the [thyroid](/wiki/thyroid) gland. Its primary function is to lower blood [calcium](/wiki/calcium) levels, counteracting the effects of parathyroid hormone. This action helps maintain mineral balance within the body.
+## See also
+- [Parathyroid Hormone](/wiki/parathyroid-hormone)
+- [Bone Metabolism](/wiki/bone-metabolism)
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