The condition known as tetany is treated by the addition of which supplement?

Tetany is a medical condition characterized by muscle cramps, spasms, and tremors, which can occur due to various factors, often related to electrolyte imbalances, particularly low calcium levels in the blood. The primary treatment for tetany focuses on restoring normal calcium levels, as calcium is essential for proper muscle function and contraction.

Calcium supplementation directly addresses the underlying cause of tetany in cases where it results from hypocalcemia (low serum calcium). By administering calcium, healthcare providers help to alleviate the muscle symptoms associated with tetany, restoring normal physiological function and preventing potential complications.

The other options, while important in various metabolic and physiological roles, do not specifically address the calcium deficiency that leads to tetany. Niacin and riboflavin are B vitamins important for energy metabolism, while vitamin D is vital for calcium absorption in the gut but does not provide immediate relief for the acute symptoms of tetany.