Which vitamin is often required for calcium efficiency in patients with hypoparathyroidism?

Vitamin D plays a crucial role in calcium metabolism and is essential for maintaining proper calcium levels in the body. In patients with hypoparathyroidism, the parathyroid glands do not produce enough parathyroid hormone (PTH), which is necessary for regulating calcium homeostasis. Without sufficient PTH, the body struggles to maintain adequate calcium levels.

Vitamin D enhances intestinal absorption of calcium from the diet, thereby increasing serum calcium levels. It also promotes the mobilization of calcium from bone, which further assists in achieving calcium homeostasis when PTH levels are low. Therefore, in the context of hypoparathyroidism, adequate vitamin D is necessary for improving calcium efficiency and preventing complications associated with hypocalcemia.

Understanding this relationship highlights the importance of vitamin D supplementation or adequate sun exposure for patients with hypoparathyroidism to help manage their condition effectively.