The FDA is currently investigating a potential link between certain diets and Dilated Cardiomyopathy (DCM)- a certain type of heart failure that can be fatal. Symptoms generally do not develop until the disease is very severe and irreversible. They include exercise intolerance, coughing lethargy (acting tired), and respiratory distress.

“Grain-Free” diets, diets including peas/lentils or potatoes/sweet potatoes, and diets with exotic proteins are those that apparently carry the greatest risk. Both the Kirkland and Costco “Nature’s Domain” grain-free foods have been included in the report.

At this point, the exact cause of DCM in these dogs is still under investigation.

DCM is a very rare type of heart failure that was previously known to occur mostly in dogs genetically predisposed to it (ie Dobermans, Great Danes), but it is now being found by cardiologists in both dogs (especially Golden Retrievers) and cats without a genetic predisposition.

If you are concerned that your pet is at increased risk of DCM, especially if they are displaying any symptoms there are few things you can do:

• Schedule your pet for an appointment for an exam and nutrition consultation.
• Talk to your veterinarian about switching your dog’s food to a diet that meets the highest AAFCO feeding standards such as Royal Canin, Purina PRO Plan, Science Diet, and Iams
• Consider testing to make sure that your dog has no nutrient deficiencies or changes to their heart structure

For more information, please see the following websites:

www.fda.gov/animal-veterinary/outbreaks-and-advisories/fda-investigation-potential-link-between-certain-diets-and-canine-dilated-cardiomyopathy
vetnutrition.tufts.edu/2019/07/dcmupdate/