What is it?

Normal magnesium levels in the blood range from 1.7-2.3 mg/dL This balance is kept thanks to the kidney.
Hypermagnesemia, or high level of magnesium in the blood, is a rare condition and is usually linked to renal failure. Other causes may include lithium therapy, hypothyroidism, Addison’s disease, milk-alkali syndrome, drugs containing magnesium and familial hypocalciuric hypercalcemia.
Hypomagnesemia, or low magnesium levels, is usually caused due to decreased absorption of magnesium from the digestive tract or increased excretion in the urine. Hypomagnesemia is rare in healthy people and is seen more in people with kidney problems or hospitalized people. Other risk factors include diabetes, gastrointestinal problems, older age, use of loop diuretics, chemotherapy and alcohol dependence.

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Disorders of magnesium metabolism.

Additional names

This group contains additional names:
- Hypomagnesemia
- Hypermagnesemia

Signs & symptoms

Hypermagnesemia symptoms may include nausea, vomiting, neurological impairment, hypotension, flushing, and headache.
Hypomagnesemia symptoms may include nausea, vomiting, weakness, decreased appetite, numbness, tingling, muscle cramps, seizures, muscle spasticity, personality changes and abnormal heart rhythms.


Diagnosis of hyper or hypomagnesemia is done by a blood test.


Hypermagnesemia treatment depends on the underlying cause, and may include intravenous calcium to reduce symptoms, and dialysis. Hypomagnesemia is treated with magnesium supplements and increased intake of dietary magnesium.

☝️ This is not a substitute for professional medical advice. Please consult with your physician before making any medical decision.

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