Copper Storage Disease in Dogs: Breeds, Signs and Management

By Tailwisp Editorial TeamUpdated October 17, 20263 min read

Copper is an essential mineral, but too much can quietly damage the liver in dogs that cannot process it properly.

What happens

In affected dogs, copper accumulates in liver cells, causing inflammation, scarring and eventually cirrhosis if not controlled. In Bedlington terriers a gene mutation affects copper excretion. In other breeds, inherited traits and diet seem to interact. See dog liver disease.

Breeds that may be affected

• Bedlington terrier
• Labrador retriever
• Doberman pinscher
• West Highland white terrier
• Skye terrier
• Dalmatian
• Cocker spaniel and others

Any dog can be affected, but these breeds have higher reported rates.

Signs

• Lack of appetite
• Vomiting
• Weight loss
• Lethargy
• Increased thirst and urination
• Jaundice
• Belly swelling
• Neurological changes in late disease

Many dogs show no signs until liver damage is advanced.

Diagnosis

Your vet may suggest bloodwork with liver enzymes and bile acids, ultrasound and a liver biopsy with copper quantification. DNA testing is available for Bedlington terriers. See dog bloodwork explained and dog DNA and genetic health testing.

Treatment

1. Dietary copper control: a diet with controlled copper and enough zinc, as your vet prescribes.
2. Chelation therapy: drugs such as D-penicillamine or trientine remove copper.
3. Zinc supplementation, which reduces copper absorption, used under supervision.
4. Antioxidants and liver support, such as SAMe or vitamin E.
5. Anti-inflammatory medication if hepatitis is present.
6. Monitoring with repeated tests and sometimes repeat biopsies.

Treatment is usually lifelong.

Diet at home

Avoid supplements, treats and foods high in copper, such as liver and shellfish, unless your vet approves. Check mineral content of homemade diets with a veterinary nutritionist. Water sources can contain copper from pipes in some homes, so ask whether testing is needed.

Side effects of treatment

Chelators can cause nausea, so give as directed, usually on an empty stomach. Report vomiting, appetite loss or other changes. Zinc can irritate the stomach.

Breeding considerations

Responsible breeders of at-risk breeds use DNA tests and liver screening. Ask for results when buying a puppy.

Prognosis

With early diagnosis and treatment, many dogs live comfortably for years. Advanced liver damage reduces options. Regular monitoring is key.

Questions to ask your vet

Ask which tests are needed, which diet suits your dog, how long treatment lasts and how often to monitor.

Common mistakes

• Feeding liver treats
• Using over-the-counter copper-containing supplements
• Skipping rechecks
• Stopping medication early

Troubleshooting

• My dog refuses the diet: ask about palatable alternatives.
• Enzymes are still high: discuss medication adjustments.
• She vomits after the chelator: ask about timing.

A simple plan

1. Confirm diagnosis.
2. Control copper in the diet.
3. Give medication consistently.
4. Recheck regularly.

Real-life examples

A Bedlington owner uses DNA testing to choose a breeder. A Labrador's enzymes improve with diet change and medication. A Westie is monitored with regular biopsies. Early work pays off.

Know your breed

Breed awareness leads to earlier detection.

Screening and monitoring plan

Dogs from at-risk breeds benefit from baseline bloodwork, including liver enzymes and bile acids, at routine visits from young adulthood. A rising trend can prompt earlier imaging or biopsy. Keep copies of every result so trends are easy to compare over years.

Practical home tips

Read food and treat labels for added copper, ask your vet before giving multivitamins, and use filtered or tested water if your home plumbing is copper-heavy. Give chelating drugs consistently, and write medication times on a calendar. Report any change in appetite, stool color or energy quickly, since early adjustments can protect the liver.

Emotional and practical support

A lifelong diagnosis can feel heavy, but many owners find a routine soon becomes normal. Breed clubs and veterinary internal medicine specialists can offer advice and connect you with others managing the same condition.

The takeaway

Copper storage disease damages the liver, but testing, diet and medication can protect it.

This article is general educational information, not veterinary advice. Every dog is different. If your dog is unwell, or you are unsure about a symptom, diet change or medication, contact your veterinarian.