What conditions lead to hypomagnesemia?
Decreased oral intake by itself is a rare cause of hypomagnesemia, but it can occur, more so in combination with other additional risk factors.
Hungry bone syndrome is an uncommon cause of hypomagnesemia. Following prolonged hyperparathyroidism, if a patient goes for a parathyroidectomy, it can result in sudden remineralization of the demineralized osteoid. This can result in sudden and prolonged consumption of serum electrolytes, including calcium, potassium, and magnesium.