Symptoms of Deficiency

Clinical manifestations of magnesium deficiency and hypomagnesaemia (abnormally low serum magnesium levels) include:


  • Muscle weakness
  • Tremors
  • Muscle fasciculation (twitching)
  • Dysphagia (difficulty swallowing)


  • Arrhythmias
  • ECG changes

Central Nervous System

  • Depression
  • Agitation
  • Psychosis
  • Nystagmus (involuntary eye movement, e.g. “dancing eyes”)
  • Seizures


  • Hypokalemia (lower-than-normal amount of potassium in the blood)
  • Hypocalcaemia (low serum calcium levels in the blood)

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