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How to Keep Your Dog’s Heart and Blood Vessels Healthy

A strong heart and healthy blood vessels are vital for your dog’s well-being. Like humans, dogs can develop heart and circulatory diseases, especially as they age. While breed can play a role, proper nutrition and regular exercise are the main factors for a healthy cardiovascular system.

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Welfare

29 October '25 • 2 min reading time

Heart problems are common in dogs. Certain breeds such as Cavalier King Charles Spaniels, Dobermans, and Boxers are more prone to specific heart conditions. But other dogs can develop heart problems as well.

Heart and blood vessel problems

The most common cardiovascular problems in dogs are: valve diseases, heart muscle diseases (cardiomyopathy), and high blood pressure. Small breeds often suffer from valve problems, while large dogs are more likely to develop heart muscle issues. Overweight, poor diet, lack of exercise, and stress can increase the risk in all dogs. Heart problems are not always easy to detect and can develop gradually. Be alert to signs such as coughing, fatigue, fainting, or a swollen abdomen. It often starts with loss of interest in play and lower energy levels. Later, breathing problems may appear. If you notice heart or vascular issues in time, much can still be done. Sometimes surgery is needed, but often medication can help your dog live a long and happy life.

Nutrition is crucial

Just like in humans, good nutrition is essential for heart and vascular health. Dogs rarely develop clogged arteries or heart attacks, but diet still plays a key role. Choose high-quality food with the right balance of proteins, fats, and fibers. Avoid too much salt and unhealthy snacks. Foods rich in omega-3 fatty acids, such as fish, can have anti-inflammatory effects and support heart function. Prevent overweight and obesity, as carrying extra kilos puts more strain on the heart.

Enough exercise

Regular exercise is the second pillar of a healthy heart. Make sure your dog gets daily walks and playtime suited to its age and breed. Always build up the exercise gradually to let the body adapt and recover. In older dogs and breeds with a higher risk of heart problems, overexertion can be harmful. Keep your dog fit, but don’t push beyond its limits. Watch for signs of fatigue and adjust activity when needed.

Stress

Stress is another risk factor for heart and vascular problems. Routine, a calm environment, and mental stimulation are important. A predictable rhythm and enough challenges help prevent stress and anxiety. Chronic stress can lead to high blood pressure and damage the blood vessels.

Check-ups

If your dog belongs to a breed prone to heart problems, regular vet check-ups are especially important. This also includes dental checks, since gum inflammation can introduce bacteria into the bloodstream and put extra strain on the heart. With proper care, diet, and attention, you can reduce the risk of heart and vascular disease and act in time if problems arise.

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