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Diet-Related Dilated Cardiomyopathy in Dogs

3 min read January 15, 2020

Introduction

When Trisha Brenner’s energetic Weimaraner, Charlie, suddenly collapsed during a walk, she was devastated and confused. Charlie had always been healthy, aside from some early skin issues that were resolved with a special diet. But that same diet was later linked to a serious heart condition.

This breakthrough in canine health research explores the connection between certain dog food ingredients and diet-related dilated cardiomyopathy (DCM), a potentially fatal heart disease. Understanding this link could help dog owners make safer dietary choices and protect their pets from unexpected heart failure.

Key Points

  1. DCM is a heart disease that weakens the heart muscle and affects blood circulation.
  2. Some dog foods with peas, lentils, legumes, or potatoes as main ingredients may be linked to DCM.
  3. The FDA launched an investigation into diet-related DCM in July 2018.
  4. A major research study funded by the AKC Canine Health Foundation is underway to explore this connection.
  5. Dog owners can help by participating in research, donating, or spreading awareness.

The Impact of Canine DCM

Dilated cardiomyopathy (DCM) is a serious condition where the heart muscle becomes weak and cannot pump blood effectively. While certain breeds like Doberman Pinschers and Boxers are genetically predisposed to DCM, recent cases have emerged in breeds not typically affected, such as Golden Retrievers and mixed breeds.

Veterinarians noticed a troubling pattern: many of these dogs were eating grain-free diets rich in legumes and potatoes. This unexpected trend raised concerns and prompted the FDA to investigate the possible link between diet and heart disease in dogs.

Tracing Research Advancements

To better understand diet-related DCM, the AKC Canine Health Foundation funded a multi-institutional study (Grant 02661: Investigation into Diet-Associated Dilated Cardiomyopathy in Dogs). Researchers from the University of Florida, Tufts University, University of Wisconsin-Madison, and UC Davis are screening a large group of healthy dogs.

They’re using heart ultrasounds, blood biomarkers, and taurine level testing to assess heart function and compare it with dietary history. This research aims to uncover how certain diets may affect heart size and performance, and to identify early warning signs of DCM.

 five-year-old Weimaraner, Charlie Brenner

Driving Progress Today

This research could transform how veterinarians and dog owners approach canine nutrition. By identifying risky ingredients and understanding their effects on heart health, future diets can be tailored to prevent DCM.

The findings may lead to improved screening methods, better dietary guidelines, and more informed food labeling. Dog owners can expect clearer recommendations and earlier interventions. With intensive treatment, Weimaraner Charlie has surpassed the expectations of his original prognosis. His owner, Trisha, encourages everyone to participate in the search for answers to diet-related DCM and other canine health concerns. She notes “Whether you choose to donate, participate in research, or help spread the word about canine health research, anyone can effect a positive change in the world.” If you would like to support CHF-funded research to help prevent, treat and cure canine disease, please visit www.akcchf.org/how-to-help.