Grain-Free Diets Linked to Dilated Cardiomyopathy

Dilated cardiomyopathy (DCM) is a condition that causes the heart muscle to stretch resulting in a weak heart beat and poor profusion. DCM was very common in cats until 1987, when it was linked to a taurine deficiency. The DCM was reversed with taurine supplementation and now commercial diets all include taurine. DCM is now a rare disease in cats and mostly seen when they are being fed a vegetarian or home cooked diet.
Dilated cardiomyopathy can also occur in dogs. DCM has a genetic component in Doberman Pinschers, Saint Bernards, Irish Wolfhounds, and Great Danes. Recently, cardiologist have noticed higher rates of DCM in the breeds that do not have a genetic component. They have also noticed that the dogs that are developing DCM are on grain-free diets. These dogs also have their heart disease reversed with supplementation of taurine.
We do not yet understand why we are seeing an increase of DCM. What is known is that dogs with DCM are being fed a grain-free, vegan, or home-prepared diet. Diets that are grain-free usually have more potatoes, peas, lentils, or chickpeas to replace the grain. Could these ingredients be contributing to the issue? Or could it be that the protein source is usually exotic such as kangaroo, buffalo, or bison? It is known that kangaroo meat has low levels of taurine. Is it the ingredients within the diet or the lack of taurine causing the heart disease? What is known is that the heart disease is generally reversible with taurine supplementation.
What should you do with this information? If you are feeding a grain free diet you might want to reconsider. There is no scientific evidence that grains contribute to any health problems in our pets, although an internet search may say otherwise. I would recommend feeding a diet from a company with a long track record of producing good quality diets that has excellent nutritional expertise and rigorous quality control standards.
If your dog is diagnosed with DCM and they are eating a grain-free, vegan, or home-prepared diet I would recommend changing their diet to a well-known reputable company. Have the plasma taurine levels checked (this is a simple blood test) and begin supplementing with taurine. It will take 3 to 6 months to see any improvement with the DCM. Also make sure you are giving the prescribed heart medications to treat the disease.
The FDA has released a statement regarding this current issue and it can be found on Bell Rock Veterinary Clinic’s facebook page. You can also visit acvn.org to find a veterinary nutritionist. Please speak with your veterinarian if you have any questions or concerns regarding your pet’s dietary needs.






