Magnesium Deficiency in Dogs: Symptoms, Causes, & Treatments

(Learn more about magnesium deficiency in dogs. Picture credit: Hugo Alejandro Salazar S / Getty Images)

Magnesium deficiency in dogs happens when a dog does not receive enough of the mineral magnesium. The condition affects a dog’s muscles and cardiac rhythm.

Generally, malnutrition can be a cause of the condition.


Technically, the condition is also known as hypomagnesemia in dogs. Also, the condition is different to excess magnesium in the blood in dogs, which you can read about here.

If you see the signs of the condition in your dog, then get to a veterinarian for a proper diagnosis and treatment.

Here’s what you should know about the symptoms, causes, and treatments for the condition.

Symptoms of Magnesium Deficiency in Dogs

The condition produces a small range of symptoms. For instance, some of the most common symptoms include:

  • Abnormal heart rhythm
  • Muscle pain
  • Problems walking
  • Muscles trembling
  • Lethargy
  • Ataxia
  • Weakness

Causes of Magnesium Deficiency in Dogs

(Picture credit: Daria Kulkova / Getty Images)

The cause of the condition is a dog’s body not receiving enough magnesium. For example, some of the ways this can happen include:

  • Malnutrition
  • Kidney problems
  • Diabetes
  • Certain medications
  • Diuretics

Treatments for Magnesium Deficiency in Dogs

Firstly, your vet will ask about your dog’s symptoms. Secondly, your vet will ask about your dog’s diet.

Thirdly, a full physical examination will be carried out. Also, blood tests will be taken. The subsequent results can help to rule out other conditions. This is called differential diagnosis.

Generally, an electrocardiogram (EKG) can monitor your dog’s heart muscles. This can help to diagnose the condition.

Usually, treatment targets the underlying cause of the condition. Generally, the use of magnesium supplements is recommended. Your vet will formulate a safe amount for your dog.

As always, if your vet recommends any supplements for your dog, make sure to stick to the correct dose and frequency instructions.

Additionally, schedule regular vet visits while your dog recovers. This is to monitor their magnesium levels.

Have you ever cared for a dog who suffered from this condition? How did your vet help your dog recover? Let us know in the comments section below.

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