How to Support Your Dog’s Heart Health for a Longer, Happier Life

A healthy heart is vital to your dog’s overall well-being. The cardiovascular system powers every part of your dog’s body, helping them stay energetic, active, and thriving. With the right care, you can significantly support your dog’s heart function and quality of life. Here’s what you need to know to keep your pup’s heart strong and healthy.

Understanding the Canine Cardiovascular System

Much like in humans, your dog’s heart has four chambers that pump blood to the lungs and the rest of the body. The right side receives blood low in oxygen and sends it to the lungs, where it gets re-oxygenated. The left side then circulates this oxygen-rich blood throughout the body to nourish organs and tissues before starting the cycle again.

Your dog’s heart typically makes up around 0.75% to 1.25% of their body weight. Puppies and small breeds generally have quicker heart rates than larger or older dogs. Factors like age, breed, physical condition, and health status all play a role in heart performance, but there are plenty of practical steps you can take to promote good heart health.

1. Keep Your Dog at a Healthy Weight

Extra weight puts unnecessary pressure on the heart, which can increase the risk of cardiac problems. Helping your dog maintain a healthy weight through controlled portions, limited treats, and quality food can reduce stress on their cardiovascular system. Regular weight checks and body condition scoring can guide you in managing your dog’s ideal weight range.

2. Encourage Daily Exercise

Exercise is key to a strong

eart. Whether it’s a daily walk, playtime in the yard, or breed-appropriate agility games, consistent activity helps improve circulation and cardiac strength. Tailor your dog’s exercise routine to their age, breed, and any existing health concerns for the best results.

3. Don’t Skip Vet Visits

Annual (or semi-annual for seniors) checkups are important for catching early signs of heart trouble. Your vet can check for abnormal rhythms or murmurs and may recommend additional diagnostics like bloodwork or imaging if anything seems off. Early detection can lead to better management of heart-related conditions.

4. Prioritize Heart-Healthy Nutrition

A well-balanced diet plays a major role in cardiovascular health. High-quality protein, healthy fats, and essential nutrients, especially omega-3 fatty acids, all support heart function. Ask your vet about the best diet for your dog’s age and breed, and whether supplements like fish oil could be beneficial.

5. Watch for Symptoms of Heart Trouble

Keep an eye out for potential warning signs such as persistent coughing, labored breathing, fatigue, loss of appetite, or episodes of fainting. If you notice anything unusual, it’s important to get your dog evaluated by a vet as soon as possible.

6. Take Care of Their Teeth

Oral hygiene might not seem directly related to heart health, but untreated dental issues can lead to bacteria entering the bloodstream, potentially affecting heart valves. Routine brushing and professional dental cleanings can help protect both your dog’s teeth and their heart.

7. Eliminate Exposure to Tobacco Smoke

Secondhand smoke doesn’t just harm humans—it can negatively impact your dog’s cardiovascular health, too. Avoid smoking around your pets and aim for a clean-air environment at home to reduce heart disease risk.

8. Learn About Your Dog’s Genetic Risk Factors

Some breeds are more prone to heart conditions than others. For example, Dobermans are susceptible to dilated cardiomyopathy, while Cavalier King Charles Spaniels often develop mitral valve disease. Knowing your dog’s genetic risk can help you take proactive steps, including regular screening and careful breeder selection if you're adopting a new pup.

Final Thoughts

Taking care of your dog’s heart is about more than just love—it's about the choices you make every day, from what they eat to how often they move. With the right habits and preventive care, you can help your dog enjoy a long, active, and heart-healthy life.