What is magnesium deficiency?

Magnesium deficiency is when the body does not get all the magnesium it needs for health.

Health problems linked to magnesium deficiency are rare, but if your magnesium levels are low long-term due to other health conditions like alcoholism or taking some medications, you may be at greater risk.

Magnesium deficiency can lead to health problems including:

  • high blood pressure and heart disease
  • diabetes
  • osteoporosis
  • migraine headaches

 

What are the symptoms of magnesium deficiency symptoms?

Magnesium deficiency can cause:

  • loss of appetite
  • nausea and vomiting
  • fatigue and weakness
  • shaking
  • pins and needles
  • muscle spasms
  • hyperexcitability
  • sleepiness
  • abnormal heart rhythms

 

What causes magnesium deficiency?

Magnesium deficiency in healthy people is rare but it can be caused by:

  • a poor diet (especially in elderly people or those who don’t have enough to eat)
  • type 2 diabetes
  • digestive problems such as Crohn’s disease
  • long-term vomiting or diarrhea
  • kidney problems
  • long-term use of diuretics
  • some medicines (for example, fluid tablets and medicines for ulcers or reflux) can cause low magnesium levels if taken for long periods
  • alcoholism

Sometimes, people can take in too much magnesium in antacids or laxatives, but this is rare. If you have concerns about this, check with your pharmacist or doctor.

 

How is magnesium deficiency diagnosed?

Magnesium deficiency is diagnosed via a blood test and sometimes a urine test. Your doctor may order the blood test if you have symptoms such as weakness, irritability, abnormal heart rhythm, nausea and/or diarrhea, or if you have abnormal calcium or potassium levels.