Heart health supplements for dogs play a vital role in supporting energy, circulation, and overall well-being — especially for aging dogs or breeds prone to cardiovascular issues. Choosing the right dog heart health supplements can help maintain a strong heart, reduce inflammation, and promote healthy blood flow. In this guide, we feature higher-quality heart health supplements for dogs formulated with proven ingredients like taurine, CoQ10, L-carnitine, and omega-3 fatty acids, designed specifically to support cardiac function.
High quality options in this category are not as common as you might expect. Many products on the market use lower-grade ingredients, lack third-party certification, or don’t meet the safety standards we look for. That’s why this list may be shorter than some of our other categories — because we only feature supplements with trusted formulations and clear benefits. As more quality products become available, we’ll review them and add them here.
Our carefully curated selection offers reliable choices to improve cardiovascular wellness, boost energy levels, and support long-term vitality. Whether your dog is recovering from a heart condition or you want to proactively maintain their heart health, these supplements provide essential nutrients that help keep them active and vibrant.
For complete wellness support, you might also like our recommended calming and anxiety supplements for dogs and immunity and digestive support supplements.
💡 A Note from HeartForPooches
Many of the products you’ll find here are premium-quality selections. When an item isn’t marketed as “premium,” it has been included only if the ingredients, materials, or design are safe, reliable, and effective. Every product featured has been handpicked to balance quality, functionality, and value — so you can feel confident in your choice. If you choose to buy through our links, it won’t cost you anything extra — but it helps support our work so we can keep bringing you trusted, carefully selected finds for your dog. Thank you for your support!🐾
📦 Note: 1. Packaging and sized may vary between shopping sites, be sure to double check before buying.
2. More items will be added as we discover them and are worth listing.
Explore these top-rated dog heart health supplements to give your dog the best chance at a healthy, happy life.
🫀 1. Zesty Paws Cardio Bites – Salmon Flavor (90 Soft Chews)
Quick Pick: Tasty salmon-flavored chews with taurine, CoQ10, and L-carnitine to support daily heart function in dogs.
– Function: Helps maintain cardiovascular health, healthy blood flow, and heart muscle function in dogs of all sizes and ages.
– Key Features: soft chew format, ideal for picky eaters; includes heart-supporting amino acids and antioxidants; free from artificial preservatives
– Best For: senior dogs or breeds prone to heart conditions; preventive heart wellness support
– Key Ingredients: Taurine, L-Carnitine, Coenzyme Q10 (CoQ10), Hawthorn Berry Extract, Vitamin E, Salmon Oil
👉 Buy on 🔴 iherb.com
👉 Buy on 🔴 iherb.sg
👉 Buy on 🔴 Amazon.sg
🫀 2. VetriScience Omega Healthy Heart / Cardio Strength – 90 Capsules
Quick Pick: Veterinarian-formulated capsules with taurine, L‑carnitine, CoQ10, and antioxidants—ideal for pets in need of heart circulation support.
– Function: Helps promote healthy heart rhythm, circulation, and cardiac muscle performance in both cats and dogs.
– Key Features: capsules can be administered whole or sprinkled, works for multi-pet households, manufactured in the U.S., NASC-certified
– Best For: older pets or those with mild heart issues; owners preferring capsules; households with dogs and cats
– Key Ingredients: L‑Carnitine, Taurine, CoQ10, DMG, Vitamin E, omega‑3 fatty acids (EPA), GLA, folic acid, magnesium, potassium, selenium
👉 Buy on 🔴 Shopee.sg
🫀 3. Dr. Mercola Bark & Whiskers™ Heart Health – 90 g powder
Quick Pick: Organic cheddar-flavored powder blend with taurine, L‑carnitine, CoQ10, vitamin E, and hawthorn berry—created by a holistic vet and suitable for both dogs and cats.
– Function: Supports cardiovascular health, heart muscle function, and healthy circulation in both dogs and cats.
– Key Features: scoopable powder in an organic cheddar base; veterinarian-formulated; supports both species; includes 12 active ingredients; pet-friendly flavor
– Best For: aging pets or those at risk for heart conditions; households with both dogs and cats; owners preferring a powder blend over chews or capsules
– Key Ingredients:
Rutin, Organic Hawthorn Berry, Taurine, Glycine, D-Ribose, Trimethylglycine (TMG), L-Carnitine, EGCG (Green Tea Extract), Pomegranate Extract, Vitamin E (d-alpha tocopherol), Pine Bark Extract, Niacin
👉 Buy on 🔴 iHerb.com
👉 Buy on 🔴 Shopee.sg
👉 Buy on 🔴 iHerb.sg
🫀 4. Rx Vitamins for Pets CoQ10‑30 – 30 Gelcaps
Quick Pick: Pharmaceutical‑grade Coenzyme Q10 (30 mg ubiquinone) in easy-to-administer softgel form—a targeted antioxidant boost for heart‑compromised or aging dogs (and cats).
– Function: Supports heart muscle energy production, boosts cardiovascular strength, and provides antioxidant protection for pets with declining heart function.
– Key Features: single‑ingredient, vet‑grade ubiquinone; hermetically sealed softgels for bioavailability; can be punctured for easy feeding if needed; simple dosing based on pet size
– Best For: dogs diagnosed with heart disease or aging dogs needing supplemental CoQ10 support alongside cardiac medications
– Key Ingredients: Coenzyme Q10 (ubiquinone, 30 mg per softgel); inactive carriers include rice bran oil, gelatin, glycerin, beeswax, and natural color
👉 Buy on 🔴 Amazon.com
👉 Buy on 🔴 Amazon.sg
🫀5. Fera Pet Organics Cardiac Support – 60 Capsules
Quick Pick: NASC-certified blend with taurine, CoQ10, and organic botanicals for clean, premium heart support.
– Function: Supports cardiovascular health, promotes healthy blood flow, and helps maintain normal heart rhythm.
– Key Features: NASC-certified formula; Vegan capsules with no fillers or synthetic additives; Transparent labeling and vet-developed formulation.
– Best For: Dogs with early signs of heart issues, senior dogs needing proactive heart support, or owners seeking clean-label, vet-backed supplements.
– Key Ingredients: Taurine, L-Carnitine, Coenzyme Q10, Organic Hawthorn Berry, Vitamin E
👉 Buy on 🔴 Amazon.com (2 sizes)
👉 Buy on 🔴 Shopee.sg
👉 Buy on 🔴 Amazon.sg
🫀 6. Wonder Paws Superhero Heart + Vitality Chews – 90 Soft Chews
Quick Pick: NASC-certified bacon-flavored soft chews packed with L‑Carnitine, taurine, CoQ10, and hawthorn for daily canine heart support.
– Function: Supports cardiovascular function, healthy blood circulation, cellular energy, and weight maintenance.
– Key Features: Soft-chew formula ideal for all breeds and sizes; vet-reviewed; NASC and GMP certified; contains clinically studied ingredients like Carniking® L‑Carnitine and CoQ10.
– Best For: Dogs of all ages needing daily heart health maintenance, especially seniors, active dogs, and breeds prone to heart issues.
– Key Ingredients: Carniking® L‑Carnitine (250 mg), Taurine (250 mg), Hawthorn Berry (100 mg), Coenzyme Q10 (10 mg)
👉 Buy on 🔴 iHerb.com
👉 Buy on 🔴 iHerb.sg
👉 Buy on 🔴 Amazon.sg
🫀 7. VetriScience Cardio Strength Supplement for Dogs (90 chews)
Quick Pick: Advanced heart support with L-Carnitine, Berberine, and taurine to promote cardiovascular health in dogs of all sizes.
Function: Supports healthy cardiac function and circulation in dogs, especially those with aging hearts or breed-related heart concerns.
Key Features:
• Veterinarian-formulated blend of heart-healthy nutrients
• Includes L-Carnitine, Taurine, CoQ10, and Berberine for complete cardiovascular support
• Promotes oxygen utilization and normal blood circulation
• Recommended for senior dogs and breeds prone to heart conditions
• Made in the USA and NASC certified
Best For: Dogs with existing heart issues, aging dogs, and breeds prone to cardiovascular conditions like Cavalier King Charles Spaniels or Dobermans.
Key Ingredients: L-Carnitine, Taurine, Coenzyme Q10, Berberine, Vitamin E, Magnesium, Folic Acid
👉 Buy on 🔴Amazon.sg
🫀 8. Standard Process Canine Cardiac Support Powder (Two Size Options)
Quick Pick: Holistic, whole-food-based heart supplement designed by veterinary experts to support dogs with cardiovascular issues or age-related heart decline.
Function: Strengthens cardiac tissue, improves circulation, and supports energy metabolism in dogs with heart concerns or breeds predisposed to cardiovascular conditions.
Key Features:
• Developed by holistic veterinarians with nearly 100 years of research
• Formulated using whole-food ingredients like bovine heart PMG™, liver, and kidney
• Contains selenium yeast and L-carnitine for heart cell energy and muscle support
• Includes hawthorn berry and mushroom extracts for circulation and antioxidant effects
• Gentle powder format with included scoop for easy dosing by weight
• Trusted in vet clinics and holistic practices across the U.S.
Best For: Senior dogs, breeds at risk of heart conditions (e.g., Cavaliers, Boxers, Dobermans), or pets recovering from heart-related health issues.
Key Ingredients: L-carnitine, bovine heart PMG™ extract, bovine liver, bovine kidney, selenium yeast, hawthorn berry, shiitake mushroom, reishi mushroom, ribonucleic acid.
👉 Buy on 🔴Amazon.sg
🫀 9. GNC Pets Advanced Heart Health Dog Supplement
Quick Pick: A premium heart support chew with taurine, CoQ10, and L-carnitine — formulated specifically for dogs by a trusted supplement brand.
Function: Supports cardiovascular health, heart muscle strength, and cellular energy in aging or at-risk dogs.
Key Features:
• Includes L-Carnitine, Taurine, and CoQ10 for heart function and energy metabolism
• Soft chew format for easy daily dosing
• Made by GNC, a leading name in human and pet nutrition
• Chicken-flavored and designed for dogs of all sizes
• Helps maintain normal circulation and heart rhythm
Best For: Senior dogs, breeds prone to heart issues (like Cavaliers or Dobermans), dogs with existing cardiovascular concerns, or dogs on grain-heavy diets lacking taurine.
Key Ingredients: Taurine, L-Carnitine, Coenzyme Q10 (CoQ10), Vitamin E, Niacin, Pantothenic Acid, Chicken flavoring
👉 Buy on 🔴Amazon.com
👉 Buy on 🔴Amazon.sg
🫀 10. InClover Heart+ Cardiac Health Supplement for Dogs & Cats
Quick Pick: A premium NASC-certified heart health supplement featuring taurine, L-carnitine, and amino acids to support cardiovascular function, muscle health, and overall vitality.
Function: Promotes healthy heart muscle function, normal cardiac rhythm, and circulation, while also supporting lean muscle mass and immune health in dogs and cats.
Key Features:
• NASC Quality Seal for verified safety, quality, and manufacturing standards
• Contains taurine, L-carnitine, methionine, and cysteine for heart and muscle support
• Includes rice protein for balanced amino acid delivery
• Suitable for both dogs and cats
• Powder form—easy to mix with food for daily dosing
Best For: Senior pets, breeds at higher risk for heart disease, pets recovering from cardiac issues, or those on diets low in natural taurine.
Key Ingredients: Taurine, L-Carnitine, Methionine, Cysteine, Rice Protein
👉 Buy on 🔴 Amazon.sg
🫀 11. ThorneVet Heart Health Formula – 90 Soft Chews
Quick Pick: Vet-developed cardiovascular support featuring CoQ10, amino acids, heart-strengthening botanicals, and essential minerals to fuel cardiac energy and safeguard heart health.
Function: Enhances heart muscle function, improves oxygen utilization and stamina, maintains healthy cardiac rhythm, and protects the heart from oxidative stress.
Key Features:
• Coenzyme Q10 and Vitamin E deliver antioxidant protection for heart tissues and support cellular energy production
• L-Carnitine and Taurine boost cellular energy, fat metabolism, and heart function—especially vital for cats
• Magnesium, Potassium, and Iron (bisglycinate) help sustain healthy heart contractions, rhythm, and oxygen transport
• Botanical blend of Quercetin Phytosome, Hawthorn, Arjuna, and Eleuthero enhances heart muscle performance, stamina, and resilience
• Clean-label—no GMOs, no unnecessary fillers, and rigorously third-party tested for purity and potency
Best For: Pets with early signs of cardiac stress, breeds predisposed to heart conditions, senior animals needing cardiac support, or anyone seeking proactive cardiovascular vigilance.
Key Ingredients: L-Carnitine, Taurine, Coenzyme Q10, Vitamin E (d-Alpha Tocopheryl), Magnesium, Potassium, Iron (II) bisglycinate, Quercetin Phytosome, Hawthorn extract, Arjuna extract, Eleuthero root extract.
👉 Buy on 🔴 Amazon.sg
❤️ Bonus Tips
– Keep your dog at a healthy weight with proper diet and portion control
– Ensure regular exercise — walks, light play, or even gentle swimming for seniors
– Schedule yearly vet checkups with heart screenings, especially for older dogs
– Avoid salty treats or table scraps — sodium can worsen heart conditions
? Frequently Asked Questions
Q: Do dogs really need heart supplements?
A: Not always — but for dogs with existing heart issues or breeds prone to them, supplements can provide supportive nutrients like taurine, CoQ10, and omega-3s.
Q: Can I give human heart supplements to my dog?
A: No — always use dog-formulated products. Human supplements may have unsafe doses or ingredients for pets.
Q: How long before I see results?
A: It varies, but many owners notice improvements in energy or stamina within a few weeks. Long-term use often offers the most benefits.
🐾 Final Thoughts
A healthy heart is the foundation of a happy, active life — and the right supplements can make all the difference. Whether your dog needs extra support due to age, breed, or an existing condition, these heart-friendly formulas are trusted by pet parents and vets alike.