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Hypomagnesemia is a condition that develops when the amount of magnesium in your body is too low. Magnesium is a mineral that helps your heart, muscles, and nerves work normally. It also helps strengthen your bones.


Return to the emergency department if:

  • You have numbness and tingling in your arms or legs.
  • You have painful muscle spasms and tremors in your arms or legs.
  • You are not able to move your muscles, and you have trouble thinking clearly.
  • Your heartbeat is faster than usual, or is irregular.
  • You have a seizure.

Contact your healthcare provider if:

  • You have fatigue and muscle tremors or twitching.
  • You become irritable and have trouble sleeping.
  • You have questions or concerns about your condition or care.

Prevent hypomagnesemia:

  • Manage health conditions by following your treatment plan. Health conditions such as congestive heart failure, diabetes, and chronic diarrhea can put you at risk for hypomagnesemia.
  • Eat foods that contain magnesium every day. Ask your dietitian or healthcare provider how much magnesium you need each day.
  • Limit or do not drink alcohol. Alcohol can prevent your body from absorbing magnesium. Alcohol also makes your body release large amounts of magnesium through your urine.
  • You may need to take a magnesium supplement. Ask your healthcare provider which supplement to take and how often to take it.

Foods that contain magnesium:

  • Almonds, cashews, peanuts, and peanut butter
  • Dark green leafy vegetables, such as spinach
  • Raisins, bananas, apples, broccoli, and carrots
  • Soy milk and soy beans
  • Black beans and kidney beans
  • Whole-wheat bread and brown rice
  • Shredded-wheat cereal, oatmeal, and other breakfast cereals fortified with magnesium
  • Plain low-fat yogurt and milk
  • Cooked halibut

Follow up with your healthcare provider or specialist as directed:

Write down your questions so you remember to ask them during your visits.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Learn more about Hypomagnesemia (Aftercare Instructions)

Associated drugs

IBM Watson Micromedex

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.