Tag: Calcium reabsorption

Over 98% of the calcium filtered by the kidneys is reabsorbed back into the bloodstream, a process finely regulated by hormonal factors including the active form of vitamin D. This article explores the specific mechanisms and pathways to answer the question: **Does vitamin D cause calcium reabsorption in the kidneys?** and its vital role in mineral homeostasis.

Over 99% of the body's total calcium is stored within the bones. When circulating blood calcium levels drop, a precise and coordinated physiological response is triggered to promote reabsorption of calcium in the bone, a critical function for overall health.