How does vitamin D regulate calcium and phosphorus?

Vitamin D functions by stimulating intestinal calcium and phosphorus absorption, by stimulating bone calcium mobilization, and by increasing renal reabsorption of calcium in the distal tubule. These functions on bone and possibly kidney, but not intestine, require the parathyroid hormone.Click to see full answer. Likewise, how Vitamin D regulates calcium and phosphorus levels in the body?This vitamin D hormone functions in the intestine, bone, and kidney to stimulate transport of calcium and phosphorus into the extracellular fluid compartment upon demand. The production of the vitamin D hormone is tightly feedback regulated directly or indirectly by calcium and phosphorus levels of the plasma. how does vitamin D regulate phosphate? Vitamin D is well known as a hormone involved in mineral metabolism and bone growth. Its most dramatic effect is to facilitate intestinal absorption of calcium, although it also stimulates absorption of phosphate and magnesium ions. In the absence of vitamin D, dietary calcium is not absorbed at all efficiently. Regarding this, why does vitamin D need calcium and phosphorus? Calcium plays a role in making the jaw bones healthy and strong to hold the teeth in place. However, calcium needs phosphorus to maximise its bone strengthening benefits. Vitamin D regulates the body’s balance of calcium and phosphorus and can promote absorption.How does vitamin D regulate calcium levels?Vitamin D also is involved in regulating the amount of calcium in your blood. PTH raises calcium levels by releasing calcium from your bones and increasing the amount of calcium absorbed from your small intestine. When blood-calcium levels are too high, the parathyroid glands produce less PTH.