15 Best Dog Foods for Heart Murmur in 2026: Vet-Approved

This content was reviewed and fact-checked by veterinarian Dr. Sandra Tashkovska, DVM.

A heart murmur may sound like a small abnormality picked up during a routine vet visit, but what goes into your dog’s bowl can become an important part of supporting their overall heart health. The best dog foods for heart murmurs should provide complete, balanced nutrition while helping your dog maintain a healthy weight and supporting cardiovascular function. Depending on the cause and severity of the murmur, your veterinarian may also recommend paying closer attention to nutrients such as sodium, taurine, omega-3 fatty acids, and overall calorie intake. The right food won’t cure a heart murmur, but it can help support your dog’s nutritional needs alongside any treatment or monitoring plan your veterinarian recommends. In this guide, we’ll break down the best dog foods for heart murmurs, what ingredients and nutrients to look for, and how to choose an option that fits your dog’s individual needs.

Best Dog Foods for Heart Murmur According to Science

The best dog food for a heart murmur should provide complete, balanced nutrition while supporting normal heart function, healthy body condition, and cardiovascular health. Look for diets with appropriate sodium levels, omega-3 fatty acids, taurine, and other heart-supportive nutrients, with any major dietary changes guided by your veterinarian based on the cause and stage of your dog’s heart condition. According to the latest studies, these are the most effective dog foods for heart murmurs:

Table data sources: ^[1],[2],[3]

Best Dog Foods for Heart Murmur

Here are the best dog foods for heart murmurs this year.

Best Overall Dog Food for Heart Murmur

Flavor: 5

Protein: 33% (Dm)

Fat: 25% (Dm)

Fiber: 7% (Dm)

Calories: 1,540 kcal/kg

Why we recommended it: Ollie fresh dog food features gently cooked, human-grade recipes made with real meat, vegetables, and nutrient-dense ingredients that support cardiovascular health without relying on heavy processing. Each recipe is formulated to meet AAFCO nutrient profiles for all life stages, helping ensure balanced protein, controlled sodium, and appropriate fat levels—key factors in heart health management. The inclusion of ingredients naturally rich in taurine precursors, along with omega-3 fatty acids from fish oil, supports healthy heart muscle function and helps reduce inflammation. Recipes are customized based on your dog’s age, weight, and activity level, which is especially helpful for maintaining an ideal body condition—one of the most important elements in protecting the heart.

What sets it apart from competitors: Food is gently cooked at low temperatures rather than extruded at high heat, preserving nutrients that may otherwise degrade during kibble production. We also appreciate the transparent sourcing and the pre-portioned meals, which make consistent feeding simple and precise.

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Best Dry Dog Food for Heart Murmur

Flavor: Chicken, salmon & beef

Protein: 30%

Fat: 12.5%

Fiber: 5%

Calories: 414 kcal/cup

Why we recommended it: Open Farm Epic Blend Dry Dog Food Recipe combines responsibly sourced wild-caught salmon with nutrient-dense superfoods to deliver a dry formula that supports heart health without excessive fillers. With high-quality animal protein and balanced fat levels, it helps maintain lean muscle while preventing unnecessary weight gain—an important factor in reducing cardiac strain. The recipe includes salmon oil and other omega-3 sources, which contribute to healthy circulation and may help reduce inflammation. Its grain-inclusive formulation uses wholesome grains like oats and quinoa instead of highly processed starches, supporting steady energy and digestive balance. Open Farm is known for its transparent sourcing and third-party certifications for animal welfare and sustainability, which adds an extra layer of trust to what goes into the bowl.

What sets it apart from competitors: Epic Blend’s unique oven-baked kibble plus air-dried meat chunks and probiotic coating deliver superior texture and probiotics over standard extruded kibbles. Taurine and DHA target heart health more directly than many other nutrients. 100% traceability to origins and a superfood count (10+) exceed typical dry-food offerings.

Best Prescription Dog Food for Heart Murmur

Flavor: Chicken

Protein: 14.5%

Fat: 16.5%

Fiber: 2.5%

Calories: 410 kcal/cup

Why we recommended it: Hill’s Prescription Diet h/d Heart Care is specifically formulated to support dogs with existing heart conditions through precise nutrient control rather than general wellness claims. It features a restricted sodium level to help reduce fluid retention, a critical component of managing heart murmur. The formula includes supplemental taurine and L-carnitine, two nutrients closely linked to heart muscle function and energy metabolism. Omega-3 fatty acids from fish oil help support healthy circulation and may reduce inflammation affecting cardiovascular tissues. Protein intake is carefully controlled to preserve lean muscle without placing unnecessary metabolic stress on the body.

What sets it apart from competitors: Proven via feeding trials, it replenishes electrolytes like potassium citrate lost in treatment. Vet-exclusive status ensures monitored use for optimal results. The brand’s research-driven approach and long-standing veterinary presence give it credibility when managing serious cardiac conditions.

Best Food for Dogs With Heart Murmur & Sensitive Stomachs

Flavor: Lamb, chicken & salmon

Protein: 24%

Fat: 12%

Fiber: 5%

Calories: 365 kcal/cup

Why we recommended it: Natural Balance Health Protection combines carefully selected proteins with wholesome grains like brown rice to support digestive stability while maintaining balanced nutrition for cardiovascular support. The formula provides moderate protein and fat levels, helping maintain lean body condition without excessive caloric density—important for dogs where weight control directly affects heart workload. It includes taurine supplementation and omega fatty acids, nutrients commonly associated with healthy cardiac muscle function and circulation. Prebiotic fiber and digestible carbohydrate sources help promote gut health and more consistent stools, which is especially helpful for dogs that cannot tolerate richer, high-fat diets.

What sets it apart from competitors: Its probiotic kibble coating and pumpkin prebiotics directly tackle sensitive stomachs better than standard heart foods lacking gut focus. Guaranteed taurine in grain-inclusive base sidesteps grain-free DCM links unlike some rivals. Six targeted health supports, including hip joints, offer broader wellness over cardiac-only options.

Best Puppy Food for Heart Murmur

Flavor: Chicken & turkey

Protein: 28%

Fat: 19%

Fiber: 6%

Calories: 385 kcal/cup

Why we recommended it: ACANA Wholesome Grains Puppy Recipe packs animal ingredients like free-run chicken, eggs, and turkey, hitting 28% min crude protein for rapid growth and cardiac muscle development. It delivers the energy young dogs need while maintaining balance to prevent excessive weight gain that could strain developing joints and the cardiovascular system. It includes naturally occurring taurine from animal proteins, along with added nutrients that support healthy heart muscle function. Whole grains such as oats and sorghum offer digestible carbohydrates for steady energy release rather than rapid spikes. DHA and EPA from fish oil help support brain development and healthy circulation during early life stages. The recipe meets AAFCO nutrient profiles for growth, including large-breed puppies, with controlled calcium and phosphorus levels to support proper skeletal development.

What sets it apart from competitors:  Antioxidants from pumpkin, squash, and rosehips plus chelated minerals boost immunity and absorption during key growth phases. Regional red lentils and diverse grains improve digestibility compared with single-carb options. Probiotic blend plus 100M CFU/lb microorganisms targets puppy gut maturity uniquely.

Best Raw Dog Food for Heart Murmur

Flavor: Beef, chicken and lamb

Protein: 48.1%

Fat: 19.2%

Fiber: 7.3%

Calories: 350 kcal/cup

Why we recommended it: Maev Whole Ingredient Dog Food is a frozen raw formula made with human-grade meats, organ cuts, and fresh produce, offering naturally occurring taurine and amino acids that support heart muscle function. The recipes are formulated to meet AAFCO standards for adult maintenance, ensuring balanced vitamins and minerals despite the raw format. Its protein-forward approach helps preserve lean body mass, while moderate fat levels prevent unnecessary caloric overload that can strain the cardiovascular system. The inclusion of ingredients like leafy greens and antioxidant-rich produce supports cellular health and circulation. Because the food is raw and frozen rather than extruded at high temperatures, many heat-sensitive nutrients remain intact. The brand also uses a subscription-based, portion-controlled system, which helps manage daily caloric intake—critical for dogs with heart concerns where weight management matters.

What sets it apart from competitors: Maev’s ready-to-serve frozen patties with integrated probiotics surpass thaw-heavy raw brands requiring extra prep. Explicit organ inclusion for taurine beats muscle-meat-only rivals, risking deficiencies. Human-grade certification and 7 health claims via toppers offer unmatched customization over basic raw.

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Best Dog Food With Taurine for Heart Murmur

Flavor: Chicken

Protein: 36%

Fat: 29%

Fiber: 5%

Calories: 204 kcal/cup

Why we recommended it: Stella & Chewy’s Freeze-Dried Raw Dog Food centers on cage-free chicken with ground bone, liver, heart, and sardines, guaranteeing 0.2% min taurine plus natural sources for myocardial strength amid deficiencies. Salmon oil supplies DHA/EPA omega-3s (0.5% min) and L-carnitine to optimize fat metabolism and cardiac efficiency, while DL-methionine and L-cystine aid taurine synthesis. Organic veggies—spinach, broccoli, cranberries—add antioxidants without grains, peas, or potatoes, keeping it legume-free per FDA insights. The formula is free from artificial preservatives, focusing instead on whole-food ingredients. We like that it can be fed as a full meal or used as a topper, offering flexibility for dogs transitioning from traditional kibble.

What sets it apart from competitors: The freeze-drying process removes moisture while preserving heat-sensitive nutrients that can degrade during extrusion. The high inclusion of organ meats gives it a more biologically aligned nutrient profile compared to conventional dry foods.

Best Dog Food Topper for Heart Murmur

Flavor: Turkey broth & salmon stew

Protein: 4%

Fat: 1.5%

Fiber: 1%

Calories: 86 kcal/box

Why we recommended it: The Honest Kitchen Functional Pour Overs – Heart Health features a turkey broth and salmon stew base designed to complement a dog’s existing food with ingredients associated with cardiovascular support. Turkey bone broth delivers collagen for vascular integrity, while fat from omegas curbs inflammation without digestive load. Human-grade production in facilities skips gums or fillers, with pumpkin and apples adding prebiotic fiber (1% max) for gut absorption of key aminos. It includes salmon for natural omega-3 fatty acids, which may help support circulation and reduce inflammation affecting heart tissue. The recipe is enriched with taurine and L-carnitine—nutrients often discussed in relation to heart muscle function and energy metabolism.

What sets it apart from competitors: Its high moisture content can also support hydration, an often-overlooked factor in dogs with heart conditions. Moisture at 90% max hydrates dry-fed pups effortlessly, boosting overall circulation.

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Best Dog Food Supplement for Heart Murmur

Flavor: n/a

Weight: 0.9 ounces

Unit count: 25 grams

Active ingredient: Soy

Calories: 5 kcal/tsp

Why we recommended it: Standard Process Canine Cardiac Support powder blends L-carnitine for fat-to-energy conversion in heart cells, bovine heart PMG™ extract targeting tissue repair, and selenium yeast for antioxidant defense against oxidative damage. Hawthorn berry provides flavonoids relaxing vessels for better blood flow, while organic reishi and shiitake mushrooms offer adaptogenic support reducing inflammation. Bovine liver and kidney supply bioavailable B-vitamins and CoQ10 precursors, with alfalfa juice powder adding trace minerals for electrolyte balance. Rice bran and nutritional yeast contribute inositol and choline aiding nerve signals to the heart. At negligible calories per 1/8 tsp dose (under 5 kcal), it sprinkles invisibly on food for picky cases. We like its organic sourcing from family farms, ensuring potency without synthetics. Ribonucleic acid promotes cellular RNA for repair, and veal bone PMG™ extract strengthens connective tissues around vessels. Vet-formulated for murmurs, arrhythmias, or DCM progression halt.

What sets it apart from competitors: Proprietary PMG™ extracts from target organs like heart and pancreas deliver tissue-specific peptides unmatched by synthetic multis. Whole-food matrix with 20+ organics boosts synergy over isolated taurine pills. Powder form absorbs faster than capsules, dosed precisely by gram for all sizes.

Best Budget Dog Food for Heart Murmur

Flavor: Chicken, beef & lamb

Protein: 25%

Fat: 14.5%

Fiber: 4%

Calories: 393 kcal/cup

Why we recommended it: Iams Proactive Health Minichunks contains moderate protein and fat levels, helping maintain healthy body weight—an important factor in reducing strain on the heart. It includes added L-carnitine to support fat metabolism and energy production, along with antioxidants like vitamin E to help combat oxidative stress. The controlled fiber blend supports digestive health, which indirectly contributes to better nutrient absorption and overall systemic function. Chicken is the first ingredient, providing animal-based protein for muscle maintenance, including cardiac muscle. Prebiotics, beet pulp, and tailored fiber ensure smooth digestion, enhancing nutrient uptake critical for circulation. Ground whole grains such as cornmeal and barley deliver digestible carbs without legume overload. 

What sets it apart from competitors: Its small kibble size can also benefit smaller breeds or dogs that prefer easier-to-chew pieces.

Best Senior Dog Food for Heart Murmur

Flavor: Trout

Protein: 30%

Fat: 12%

Fiber: 5%

Calories: 382 kcal/cup

Why we recommended it: Nulo FreeStyle Senior Dry Dog Food features high-quality animal proteins such as trout and turkey meal to help preserve muscle mass, including the heart muscle, during the aging process. With roughly 30% protein and 12% fat, the formula supports lean body condition without excess caloric density that could contribute to weight gain and added cardiac strain. It includes added taurine and L-carnitine, nutrients commonly associated with heart muscle function and energy metabolism. The recipe also contains omega-3 and omega-6 fatty acids to support circulation and reduce inflammation. As a grain-free formula, it uses alternative carbohydrate sources like sweet potatoes and chickpeas, providing digestible energy while keeping total carbs moderate. Probiotics are included to promote gut health and nutrient absorption, which becomes increasingly important in senior dogs.

What sets it apart from competitors: Supplemented with chondroitin and glucosamine, which cushion joints strained by age-related posture shifts. BC30 probiotics (80M CFU/lb) plus chicory root optimize gut health for better nutrient flow to vessels. 

Best Wet Dog Food for Heart Murmur

Flavor: Beef, lamb, duck, pork & poultry

Protein: 8%

Fat: 3%

Fiber: 2%

Calories: 97 kcal/cup

Why we recommended it: ACANA Premium Chunks in Bone Broth features real animal protein suspended in a savory bone broth, providing high moisture content that supports hydration—an important factor for dogs managing cardiovascular issues. The formula delivers quality protein from named meat sources, helping maintain lean muscle mass without excessive fat levels. Its moderate calorie density makes portion control more manageable compared to richer pâté-style foods. Explicit taurine addition alongside salmon/fish oil counters grain-free gaps flagged by FDA, promoting vessel flexibility and rhythm stability. Low-phosphorus veggies—sweet potatoes, cranberries, spinach—supply antioxidants and fiber without legume excess, easing kidney load tied to heart cases. Choline chloride and chelated minerals enhance taurine synthesis and absorption, while 78% moisture prevents dehydration, straining circulation. We like that it can be fed as a full meal or combined with dry food to increase moisture intake without drastically increasing calories.

What sets it apart from competitors: The inclusion of broth adds palatability while keeping sodium levels appropriate for a complete and balanced maintenance diet.

Other Dog Foods for Heart Murmur

How to Transition Your Dog With Heart Murmur to a New Diet

A gradual food transition can help dogs with a heart murmur adjust to a new diet without unnecessary digestive upset or appetite changes. Use the schedule below as a general guide, but follow your veterinarian’s instructions if your dog has diagnosed heart disease, takes cardiac medications, or needs a therapeutic diet.

Monitoring Your Dog With Heart Murmur’s Progress on a New Diet

After the switch, watch your dog’s appetite, stool quality, vomiting, energy level, and body weight. Reduced appetite, unexplained weight loss, or difficulty maintaining muscle can be important in dogs with underlying heart disease, so persistent changes should be discussed with your veterinarian.

Also pay attention to whether heart-related signs are stable, improving, or worsening. Changes such as increased resting breathing rate, coughing, weakness, reduced exercise tolerance, or unusual fatigue deserve veterinary attention. Dogs taking heart medications may also need periodic bloodwork to monitor kidney function and electrolytes, so diet changes should remain coordinated with your veterinary team.

The Bottom Line

Choosing the best dog food for a heart murmur starts with understanding that every murmur has an underlying cause, and nutritional needs can vary accordingly. A complete and balanced diet that supports healthy body weight, muscle condition, and cardiovascular function is an important foundation. Depending on your dog’s diagnosis, nutrients such as omega-3 fatty acids, taurine, and appropriate sodium levels may also deserve closer attention. Avoid making aggressive dietary restrictions or adding supplements without veterinary guidance, especially if your dog takes heart medications. Once you change foods, monitor appetite, weight, energy, digestion, breathing, and exercise tolerance for any noticeable changes. Regular veterinary checkups can help determine whether the diet remains appropriate as your dog’s condition changes. With thoughtful nutrition and ongoing monitoring, you can support your dog’s overall health alongside their veterinary care plan.

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Sources

Canine Bible uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process and product review methodology to learn more about how we fact-check, test products, and keep our content accurate, reliable, and trustworthy.

1. Key nutrients important in the management of canine myxomatous mitral valve disease and heart failure
2. Dietary intervention reduces left atrial enlargement in dogs with early preclinical myxomatous mitral valve disease
3. Effect of 6-Month Feeding with a Diet Enriched in EPA + DHA from Fish Meat… in Dogs with MMVD