Latent tetany: tingling, palpitations and anxiety caused by hidden magnesium deficiency

Latent tetany is a neuromuscular disorder caused by magnesium deficiency that standard blood tests miss, because magnesium is stored mainly inside cells. Patients often spend years consulting cardiologists, neurologists and psychiatrists for symptoms like finger tingling, a lump in the throat, palpitations and sudden anxiety. A specialist EMG test is needed for diagnosis. Treatment typically involves magnesium supplementation.

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