Neapolitan Mastiff
nee-uh-PAHL-ih-tun MASS-tiff
Loyal, Dignified, Watchful, Steady. Originally bred for guarding estates.
An adult Neapolitan Mastiff weighs 150-200 lbs (male) or 110-150 lbs (female), needs 1,310-2,880 calories daily, and lives 7-9 yrs. Giant breeds grow slowly and need careful nutrition management during their extended puppyhood. The breed's primary health watch is hip dysplasia. All numbers below come from AKC breed standards and NRC 2006 veterinary nutrition formulas.
Nutrition and feeding
A typical adult Neapolitan Mastiff needs 1,310 to 2,880 calories per day. An average male (175 lbs / 79.4 kg) needs around 2,230 kcal; a female (130 lbs / 59.0 kg) roughly 1,790 kcal. These estimates use the vet-standard RER/MER formula.
Estimate for a typical adult Neapolitan Mastiff. For puppies, seniors, or specific activity levels, use the full calorie calculator.
Health profile
Giant breeds have shorter lifespans than smaller dogs, and the Neapolitan Mastiff is no exception at 7-9 yrs. Their large frames put stress on joints, hearts, and skeletal systems. The breed's primary health concerns are hip dysplasia and elbow dysplasia, which responsible breeders screen for before breeding.
Exercise and activity
Low; short, moderate walks. Not an active breed. Avoid intense exercise, especially in heat. Working breeds like the Neapolitan Mastiff were developed for specific physical tasks. They need purposeful activity, not just wandering around a yard. Structured exercise with clear tasks, such as carrying a dog pack on hikes, pulling a cart, or advanced obedience training, satisfies their need to work.
Care and traits
Neapolitan Mastiffs have a short, dense, loose-skinned with heavy wrinkles coat. Origin: Italy (Naples).
The most wrinkled dog breed. Those wrinkles need daily attention to prevent infections. They drool profusely. Featured as Fang in the Harry Potter films. Not for first-time dog owners.
Grooming needs are minimal. A weekly brushing to remove loose hair and distribute skin oils is sufficient for most Neapolitan Mastiffs. Bathing is only needed when the dog is noticeably dirty or smelly.
Living space matters for a breed this size. They need room to move without knocking things over, and many giant breeds prefer cool environments. Heat tolerance is limited; monitor closely in warm weather. Elevated food and water bowls may improve comfort during meals.
Training requires patience with the Neapolitan Mastiff. They are intelligent but may be independent or stubborn about following commands. Keep sessions short, use high-value rewards, and maintain consistency. Harsh corrections backfire with this breed.
Tools for Neapolitan Mastiff owners
Frequently asked questions
A healthy adult Neapolitan Mastiff requires between 1310 and 2880 calories daily. A 175-pound individual falls near the middle of that range. Giant breeds need split meals, ideally two to three times daily, to reduce the risk of gastric dilatation-volvulus (bloat). Active dogs need more; seniors and less active individuals need less. Use our calorie calculator with your dog's actual weight for a personalized number.
Males typically weigh 150-200 lbs (68.0–90.7 kg). Females run lighter at 110-150 lbs (49.9–68.0 kg). Giant breeds should appear muscular and solid but never round. Because they carry so much mass, even moderate overweight significantly stresses joints and shortens lifespan. Run your hands along the ribcage: you should feel ribs under a thin layer of flesh without pressing hard. From above, look for a visible waist narrowing behind the ribs.
The top health priority for Neapolitan Mastiff owners is awareness of hip dysplasia. Hip dysplasia is a developmental condition where the hip joint doesn't fit together properly. Screening through OFA or PennHIP before breeding is standard practice. In pet dogs, maintaining a lean body weight is the most effective way to manage and slow progression. Other conditions seen in the breed include elbow dysplasia, bloat, cherry eye. Not every Neapolitan Mastiff will develop these conditions, but knowing the breed's tendencies helps you and your vet monitor proactively.
Plan for 20 to 30 minutes of exercise daily for your Neapolitan Mastiff. Good activities for this breed include structured tasks, cart pulling, obedience drills. Avoid high-impact exercise (jumping, stairs) during the growth phase to protect developing joints. Even low-energy breeds need daily movement for joint health, weight management, and mental well-being.
Disclaimer: General breed information based on AKC standards and veterinary sources. Individual dogs vary. Calorie estimates use the RER/MER formula (NRC 2006). Consult your veterinarian for advice specific to your dog. See our sources.
Last reviewed: April 1, 2026