The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Small, long-nosed dogs tend to live longer than large or flat-faced dogs, but no single breed is guaranteed to be the longest-lived. The strongest recent comparison, a 2024 analysis of 584,734 dogs in the United Kingdom, found the longest-lived group was small, dolichocephalic (long-headed) female dogs. Breed averages describe populations, not an individual dog’s future.
What the largest studies show about canine longevity
Dog lifespan is associated with several interacting traits: body size, sex, head shape, breed ancestry and genetic diversity. The studies below use different countries, records and definitions, so their figures should not be combined into one universal breed leaderboard.
As an Amazon Associate I earn from qualifying purchases.
| Study | Population and setting | Main finding | How to interpret it |
|---|---|---|---|
| McMillan et al., Scientific Reports, 2024 | 584,734 unique UK dogs, including 284,734 deceased dogs; 155 breeds | Small-dolichocephalic-female dogs were the longest-lived comparison group. Body size, sex and cephalic index were associated with survival. The phylogenetic signal for median lifespan was Pagel’s Lambda = 0.808. | A large UK population analysis, not a promise for any individual dog or a complete ranking of named breeds. |
| Roccaro and collaborators, Preventive Veterinary Medicine, 2024 | 4,957 deceased dogs recorded from 2004–2020 through nine Italian veterinary teaching hospitals and two public-health institutions | Overall median longevity was 10.0 years. Crossbred, female, neutered and small dogs had significantly longer median longevity in this cohort. | These are Italy-specific death records and should not be treated as a worldwide life-expectancy estimate. |
| U.S. primary-care cohort, 2020 | 20,970 dogs | Breeds with larger effective population sizes or lower inbreeding coefficients had median survival 3–6 months longer. Mountain-group purebreds had median survival 3.5–4.6 years shorter than other purebred groups after body-size correction. | The results describe associations after statistical adjustment, not a guaranteed genetic advantage for every mixed-breed or breed-line dog. |
| Systematic review, 2025 | 62 manuscripts on pet-dog longevity | Reviewed breed, sex, body size, neuter status, vaccination, behavior, body weight, dental-scaling frequency, diet and epigenetic measures. | The review summarizes associations across studies; it does not show that one food, product or routine adds a fixed number of years. |
Which named breeds have appeared among the longest-lived?
An older UK veterinary-record study identified several breeds among its longest-lived groups. Because the data and methods are historical and dataset-specific, these should be read as examples from that study rather than a current universal ranking.
Free tools Windows power users keep installed
One-click scans. No signup required.
| Breed | Finding in the older UK records study |
|---|---|
| Miniature Poodle | Among the breeds identified as longest-lived |
| Bearded Collie | Among the breeds identified as longest-lived |
| Border Collie | Among the breeds identified as longest-lived |
| Miniature Dachshund | Among the breeds identified as longest-lived |
| Dogue de Bordeaux | Among the breeds identified as shortest-lived |
| Great Dane | Among the breeds identified as shortest-lived |
The more recent UK analysis did not reduce longevity to a single winning breed. Its strongest pattern was morphological: small body size combined with a long head, particularly in females. “Dolichocephalic” describes a relatively long, narrow skull; flat-faced or short-headed dogs are generally classified toward the brachycephalic end of the same head-shape spectrum.
#1 Best Overall
- Dog multivitamins chewable for skin & coat : Dog multivitamin is rich in Omega-3 fatty acids and vitamin E,which can relieve skin allergies,dryness,itching and other problems.Multivitamin for dogs nourishes skin follicles.Long-term consumption of dog vitamins multivitamin can make dog hair stronger and smoother,and reduce coat loss.The COQ10 in dog multivitamin chewable can resist oxidation and delay cell aging.Dogs with skin injuries can eat dog vitamins and supplements to promote wound healing
- Dog multivitamin relieves joint inflammation: Dog vitamins for hip and joint can supplement high-quality MSM, glucosamine, and chondroitin sulfate to promote cartilage development and repair. Long-term consumption of dog multivitamins chewable can enhance the elasticity and toughness of joint cartilage, improve joint flexibility, and move more freely. Dog multivitamin chews can reduce joint friction and relieve joint pain. Dog vitamins and supplements can prevent and improve dog joint problems
- Dog multivitamin chews are good for the gut: Vet-endorsed formula dog vitamins and supplements made from natural ingredients.Dog vitamins multivitamin chewables contain a rich blend of probiotics to support intestinal and digestive health.Dog vitamins for small dogs can regulate the balance of intestinal flora,help calcium absorption,and promote bone development.Dog multivitamins chewables improve energy metabolism,converting food into energy, making dogs more energetic in their daily activities
- Dog multivitamin chews protect overall health:Senior dog vitamins and supplements help improve blood circulation and prevent cardiovascular disease.Dog multivitamins chewable support normal liver function,promote liver detoxification,and improve negative mood.For dog with heart problems and older dog,taking dog vitamins and supplements in moderation is an auxiliary health care measure.Dog vitamins multivitamin helps enhance white blood cell activity,improve immunity,prevent infection and disease
- Dog multivitamins chewable promote brain development: The DHA in krill oil in multivitamin for dogs is an important component of the brain and retina. Dog vitamins and supplements can improve dog cognitive ability. When training puppies to learn basic commands, puppies who are properly supplemented with dog vitamins multivitamin will behave more intelligently and improve memory.Dog supplements & vitamins can prevent and relieve eye problems such as dry eyes and tear stains, and keep eyes healthy
Do small dogs live longer than large dogs?
In the UK and Italian datasets, small dogs had the survival or longevity advantage. The pattern is a population association, not a rule that every small dog will outlive every large dog. Large dogs can reach advanced ages, while an individual small dog may die young from disease, injury or other causes.
Head shape also mattered in the UK analysis. Body size and cephalic index were modeled separately, which means the result was not simply a size effect relabeled as a head-shape effect. The study found survival differences across combinations of size, sex and skull shape, with small, long-headed females forming the longest-lived comparison group.
Rank #2
- 8-in-1 Formula - Zesty Paws Multifunctional Bites are functional supplement chews with premium ingredients that support physical performance, antioxidants, hip & joint, heart, immune, skin, liver, & gut health for dogs of all ages, breeds, and sizes.
- Skin Health & Antioxidants – For animals with sensitive skin, this formula contains Cod Liver Fish Oil and Vitamin E to help maintain normal moisture and CoQ10 to help reduce oxidative stress.
- Hip, Joint & Performance Support - Each dog chew features OptiMSM, a premium form of MSM for muscular support, which works synergistically with the Glucosamine HCl and Chondroitin Sulfate in these chews for hip and joint support plus Cod Liver Oil and B-Complex Vitamins support normal physical performance.
- Gut Health & Probiotics - These chews also contain a six-strain Gut Health Blend (500 million cfu per chew) and a Digestive Health Blend to promote gut flora while supporting normal bowel function for dogs.
- Heart, Liver & Immune Health - Multifunctional Bites feature powerful antioxidants, premium CoQ10, Cod Liver Oil and Vitamins A, C, & E to promote healthy cardiovascular function, support liver health and enhance immune response.
Do mixed-breed dogs live longer?
The 2024 Italian death-record study found significantly longer median longevity for crossbred dogs than for purebred dogs in that Italian cohort. That result is consistent with the possibility that broader ancestry can reduce some inherited risks, but it does not make “mixed-breed” a guarantee of extra years.
Genetic diversity appears relevant in the 2020 U.S. cohort: breeds with larger effective population sizes or lower inbreeding coefficients had median survival 3–6 months longer than breeds with smaller effective population sizes or higher inbreeding coefficients. Effective population size is a measure of how much genetic diversity is represented in a breeding population; it is not the same as the number of dogs registered.
Rank #3
- COMPLETE 26-IN-1 DAILY WELLNESS FORMULA: Our advanced multivitamin for dogs is formulated to help support 26 vital nutritional areas as part of a daily routine. With essential vitamins A, C, D3, and E, these gummies help support the immune system and contribute to overall heart and brain health for dogs of all sizes.
- ADVANCED HIP AND JOINT MOBILITY SUPPORT: Formulated with Glucosamine HCl, Chondroitin, and MSM to help support cartilage health, joint flexibility, and everyday mobility — making them a great daily supplement for large breed dogs and active senior dogs.
- SKIN & COAT SUPPORT: Packed with Norwegian Salmon Oil and Biotin, our dog multivitamin helps nourish skin from within and supports a soft, glossy coat. Omega 3 fatty acids contribute to healthy skin and coat as part of a complete daily nutritional routine.
- PROBIOTICS & DIGESTIVE SUPPORT: Features a Six-Probiotic Blend (500 Million CFU) and Digestive Enzymes to help support gut health, smooth digestion, and nutrient absorption. Cranberry Powder is included as part of this comprehensive daily wellness formula.
- UNBEATABLE VALUE 250 COUNT JAR: Our 250-count jar provides lasting daily support in a delicious chicken flavor. Made in the USA in a GMP-certified facility, our soft chews are grain-free and suitable for puppies, adult, and senior dogs alike.
Health testing, responsible mating decisions and the actual medical history of a dog’s parents can therefore matter more than a simple purebred-versus-crossbred label. A crossbred dog can inherit serious disease risks, and a well-managed purebred line can have favorable health outcomes.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to give your dog the best chance of a longer life
Keep body condition in the veterinarian-recommended range
Body weight was one of the modifiable factors evaluated in the 2025 systematic review. Ask your veterinarian to assess body condition rather than relying only on a scale, because ideal weight varies with frame, age, muscle and disease status. Recheck the assessment as your dog grows older or its activity changes.
Rank #4
- Joint Health Supplement for Dogs: Cosequin is the #1 vet recommended retail joint health supplement brand, supporting joint health in dogs for over 25 years
- Contains Glucosamine for Dogs: Cosequin contains glucosamine hydrochloride (FCHG49) and sodium chondroitin sulfate (TRH122), plus methylsulfonylmethane (MSM). This unique combination of ingredients supports healthy joints
- For Any Breed or Size: Whether you have a young or senior dog, a small or large breed, Cosequin helps support their joint health
- Tasty Chews for Daily Use: Cosequin comes in a tasty chewable tablet, making daily administration easy and convenient
- Exceptional Quality: Cosequin is backed by science, undergoing thorough quality inspections to ensure your dog receives a safe, high-quality product. It is manufactured in the United States with globally sourced ingredients
Feed a complete diet and control portions
Use a nutritionally complete diet appropriate for the dog’s life stage and medical needs, and measure portions consistently. A veterinarian can help estimate calorie needs for a growing puppy, senior dog or dog prone to obesity or another disease. The available evidence does not support promising a specific food as a guaranteed lifespan extender.
Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallUse preventive veterinary care
Maintain routine examinations and vaccination according to your veterinarian’s risk assessment. Investigate changes in appetite, mobility, breathing, lumps, drinking, elimination or behavior instead of waiting for them to become severe. Preventive management is relevant to longevity, but the evidence summarized here does not establish one universal appointment schedule that adds a guaranteed number of years.
Best Value
- Itch & Allergy Relief with Omega-3 for Dogs - with 500mg of Omega (EPA+DHA) per serving, our chewable supplement helps with hot spots, dry itchy skin, ease itching, irritated skin, stops shedding.
- Skin & Coat + Hip & Joint Supplement Combined - Omega 3 is a vital element to keep your pet active, support healthy hip and joints, brain, heart, immune health. Can be served with regular pet food.
- Bark&Spark Commitment - we are keen to give best to our furry customers and we take NO compromise when it comes to product quality. Our omega 3 bites are made in the USA, with human grade ingredients.
- Up to 3 Month Supply - with 180 salmon oil treats per jar you keep your pet healthy while not spending a fortune on overpriced supplements. Best value.
- Is Your Dog a Picky Eater? We stick to simple formulas rich in natural flavors, that could tempt a fussy eater. No hassle with pills, powder, tablets or capsules.
Make dental care routine
Build regular dental care into daily life and ask about professional cleaning when your veterinarian recommends it. Dental-scaling frequency appears among the factors evaluated in the systematic review, but consumer dental products have not been proven to extend lifespan.
Provide safe activity and enrichment
Regular movement, play and mental enrichment support behavior and help with body-weight management when matched to age, fitness and physical limitations. There is no single exercise prescription that fits every breed or health status. Dogs with breathing problems, arthritis or heart disease need a plan set with a veterinarian.
Consider health and diversity when choosing a dog or breeding
When acquiring a dog, consider adult size, head shape, known breed-health risks, parental health information and the genetic diversity of the line. Avoid choosing solely from a “longest-lived breed” list: the studies show broad population patterns, while an individual dog’s care and inherited risks remain decisive.
What commonly leads owners to misread lifespan claims?
- Confusing median longevity with a guarantee. A median is the midpoint of a study population; half the dogs lived longer and half shorter in that dataset.
- Treating a historical ranking as current. The named-breed list comes from older UK records and may not represent today’s populations or other countries.
- Using record-holder dogs as evidence. Exceptional old dogs are not representative of their breed’s typical survival.
- Ignoring geography and sample design. UK living-dog records, Italian death records and a U.S. primary-care cohort measure different populations.
- Assuming euthanasia data are natural-life data. In the Italian study, 2,883 of 4,957 dogs (58.2%) were euthanised, a detail that affects how those death records should be interpreted.
- Overlooking causes of death. Neoplasia was the most frequent classified cause in the Italian study and mostly affected large-sized dogs, but that finding does not establish the same cause-of-death pattern everywhere.
What the evidence means for an individual dog
The most defensible answer to “Which dog breeds live the longest?” is that small, long-headed dogs—especially females in the 2024 UK comparison—had the most favorable survival pattern in the strongest recent analysis. Historical records placed Miniature Poodles, Bearded Collies, Border Collies and Miniature Dachshunds among longer-lived breeds, while Dogues de Bordeaux and Great Danes appeared among shorter-lived breeds in that older dataset.
Those findings can inform a choice, but they cannot predict one dog’s lifespan. Maintaining a healthy body condition, feeding appropriately, using preventive care, addressing dental disease, providing suitable activity and considering inherited health risks are practical ways to improve the odds of a longer, healthier life.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Leave a Reply