Large Breed Dog Care Guide
Large (50-90 lb) and giant (90+ lb) breeds — Labradors, German Shepherds, Great Danes, Mastiffs, Bernese Mountain Dogs — have real differences in care needs compared to smaller dogs, mostly centered on joint health, growth pacing, and cost. Here's what actually matters.
Joint health is the defining concern
Large and giant breeds are disproportionately prone to hip dysplasia, elbow dysplasia, and cranial cruciate ligament (CCL/ACL) injuries. Genetics play the largest role, but growth rate and body weight during puppyhood are modifiable risk factors:
- Use a large-breed-specific puppy formula, which controls calcium and calorie density to slow growth rate rather than maximize it.
- Avoid free-feeding or overfeeding — keeping a large-breed puppy lean during growth is one of the best-supported ways to reduce dysplasia risk.
- Limit high-impact exercise (repeated jumping, long runs on hard surfaces) until growth plates close, generally somewhere around 12-18 months depending on the breed.
- Ask your vet about joint supplements (glucosamine/chondroitin, omega-3s) — evidence is mixed but many vets recommend starting early as a precaution for high-risk breeds.
Consider a joint supplement early, not after symptoms appear
For breeds with known dysplasia risk, many owners start joint support supplements during the growth phase rather than waiting for stiffness or limping to show up.
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Feeding large breeds correctly
Because larger dogs eat significantly more over their lifetime, small per-pound cost differences between food types translate into large absolute dollar differences. Run your dog's actual weight and food type through ourDog Food Cost Calculatorto see a realistic monthly number rather than guessing — it's common for large-breed owners to be surprised how much a "premium" food upgrade costs per month once volume is factored in.
If you're still in the growth phase, ourpuppy growth stages guideand Puppy Weight Predictorcan help you anticipate adult size so you're buying the right crate, bed, and gear sizes instead of replacing them repeatedly.
Cost and insurance considerations
Large and giant breeds tend to have both higher baseline costs (more food, larger medication doses, bigger gear) and higher risk of expensive orthopedic surgery — a single CCL repair surgery commonly runs $3,000-$7,000 per knee. This combination is why large-breed owners see the clearest financial case for pet insurance, especially when enrolled as a puppy before any joint issues appear on record.
Orthopedic surgery is one of the most common large-breed insurance claims
CCL/ACL repairs and hip dysplasia treatment are among the costliest common claims for large and giant breeds. See what coverage would cost for your dog.
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For the full cost picture beyond food and insurance, see our guide onhow much it costs to own a dog, which breaks down first-year and ongoing costs by size.
Lifespan expectations
One tradeoff worth knowing going in: giant breeds generally have shorter average lifespans (often 7-10 years) than small breeds (often 12-16 years), largely due to the physical strain of a larger body. This isn't a reason to avoid a giant breed, but it's worth factoring into long-term planning and is part of why many giant-breed owners lean toward earlier, more comprehensive preventive care.