An adult Cavalier King Charles Spaniel needs a complete food and a portion based on its weight: for a 7 kg dog, neutered and moderately active, that is about 304 kcal a day. Veterinary studies of the breed point to three places where the bowl really matters: weight, because Cavaliers are recorded as overweight more often than other dogs; the heart, where a special diet is only needed once your vet recommends one; and the pancreas, a lesser-known weak spot that is often found late.
A complete food for adult dogs, in the right portion for its ideal weight: a healthy Cavalier needs nothing more, and no study has found a format or ingredient that is better for this breed. The choices that really matter for a Cavalier are the ones around the bowl: how many treats, what you hide tablets in, whether scraps come off the table. The reason is in its vet records.
A detailed look at Cavaliers in everyday practice comes from VetCompass, which reads the anonymised records of UK first-opinion vets for the Royal Veterinary College. Among the 1,749 Cavaliers with clinical records in a 2015 study, the most common problem was a heart murmur (30.9%), followed by diarrhoea (11.0%); gastrointestinal problems as a group affected about one Cavalier in five. In a second VetCompass study, Cavaliers had 47 times the odds of a crossbreed of being diagnosed with mitral valve disease, and on their own made up about a third of all dogs with that diagnosis. Food does not fix any of this, but the heart and the gut change how the bowl is best managed.
The FCI breed standard gives 5.4 to 8 kg (12 to 18 lb) for males and females, and prefers a small, well-balanced dog comfortably within that range. In UK practices the picture is different: the median adult weight of dogs recorded as Cavaliers was 10.5 kg, with some up to 27.3 kg. Treat that with caution, because only 3.9% of the dogs recorded as Cavaliers could be confirmed as Kennel Club registered, and a 27 kg 'Cavalier' is unlikely to be purebred, but it makes one point: the number on the scales alone will not tell you whether your Cavalier is in good shape.
And shape matters, because Cavaliers are recorded as overweight more often than many dogs. In a VetCompass study of 22,333 dogs, 11% of Cavaliers (48 of 435) were recorded as overweight against 7.1% of all dogs; after accounting for age, neutering and other factors, Cavaliers had 1.5 times the odds of a crossbreed of being overweight. So feel the ribs rather than trusting the scales: on the WSAVA 9-point body condition scale the ideal is 4 to 5, with ribs easy to feel under a thin layer of fat.
It is one of the first questions Cavalier owners ask, and the answer surprises many: not until your vet says so. The 2019 ACVIM consensus guidelines name the Cavalier as an example of a high-risk breed: without a murmur it is stage A, and for these dogs the guidelines recommend no medication and no special diet, only a yearly listen to the heart at the vet's. When a murmur is present but the heart is not yet significantly enlarged (stage B1), the guidelines again recommend no medication and no special diet, only a repeat check of the heart by ultrasound (or X-rays) in 6 to 12 months.
Diet comes in later, always on veterinary advice:
Two studies explain why salt is not something to cut by guesswork. In a Tufts University study of 82 dogs with heart disease, 92% were given treats or table food, a median of a quarter of their daily sodium came from those extras, and 57% of the owners who gave tablets hid them in food. Meanwhile, in 29 dogs with early valve disease and no symptoms, aldosterone and heart rate had risen significantly after four weeks on a low-sodium diet: restriction is something to set with your vet, according to the stage. In practice, if your Cavalier has a heart diagnosis: no cheese, ham or sausage for pills without talking to your vet first, and if it loses weight it needs a check-up, not a diet.
After the heart comes the gut. In a University of Cambridge study of 200 dogs examined after death, all from first-opinion practices, signs of chronic pancreatitis were found in 34% of the cases that could be assessed, a disease the authors describe as common and under-estimated; Cavaliers, collies and boxers were the breeds with an increased relative risk.
Over time an inflamed pancreas can stop producing digestive enzymes: this is exocrine pancreatic insufficiency (EPI). Everyone links it to German Shepherds, yet in a review of 13,069 tests the Cavalier was one of four breeds associated with it, with a twist: it shows up later, at a median age at diagnosis of 6 years against 3 in German Shepherds, possibly, the authors suggest, as a consequence of chronic pancreatitis. The authors of the VetCompass Cavalier study, citing that EPI research, note that in Cavaliers with digestive problems EPI is often not considered or tested for, and that some of the diarrhoea they recorded could be down to undiagnosed chronic pancreatitis or EPI. If your dog eats well but loses weight and passes very large stools, ask your vet about the specific blood test (TLI) before changing food.
The bowl matters in another way too: in an American study of 385 dogs, eating table scraps in the previous week was linked to 2.2 times the odds of pancreatitis, and getting into the bin to 13 times the odds. For a breed already at higher risk, scraps and an open bin are the first thing to sort out (see our guide to table scraps for dogs), and food changes should be gradual, one food at a time.
Fly catching, when a dog snaps at flies that are not there, is usually put down to neurological or behavioural causes. Yet in a small case series from the University of Montreal, all 7 dogs examined, including 2 Cavaliers that did it mainly after meals, had changes in the stomach or intestine. In one Cavalier the behaviour resolved once the gastrointestinal problem was treated; in the other, which also had a Chiari-like malformation, it improved only with a drug for neuropathic pain and never fully stopped. It is a handful of cases, but if your Cavalier does it, it is worth raising with your vet.
Each Pappa Fresh recipe contains one meat and lists the percentage of every ingredient on the label, so you always know what your Cavalier is eating and can show the label to your vet:
They are cooked in the pouch and keep outside the fridge until opened; once opened, they go in the fridge and should be used within 2-3 days. For a 7 kg Cavalier one 400 g pouch covers about 1.5 days of meals, so it is finished well within that window. If you would rather not switch completely, the Mix plan covers half the daily ration alongside the kibble your dog already eats. Turkey is poultry: if your dog has reacted to chicken, ask your vet before trying it.
An adult Cavalier weighing 7 kg, neutered and moderately active, needs about 304 kcal a day: with our Chicken recipe that is about 267 g, with the richer Beef 224 g. An entire (unneutered) Cavalier burns more, about 380 kcal. The table runs from 6 kg to 8 kg, within the FCI standard; if yours is heavier, the quiz works out the portion from its real weight and body condition. For the general principles, see our guide on how much a dog should eat.
Treats are part of the ration: if you give a lot, take them off the bowl. And if your vet has diagnosed heart disease, the vet sets portion and diet: these figures are for a healthy Cavalier.
| Weight | Energy need (kcal/day) neutered / intact | Grams per day neutered / intact | Complete plan | Mix (½) |
|---|---|---|---|---|
| 6 kg | 271 / 339 | 238 g / 297 g | €4.41/day | €2.16/day |
| 7 kg | 304 / 380 | 267 g / 333 g | €4.93/day | €2.43/day |
| 8 kg | 336 / 421 | 295 g / 369 g | €5.45/day | €2.69/day |
Grams based on the Chicken recipe (114 kcal/100 g); with Beef, which is richer (136 kcal/100 g), you need about 16% less. Prices for a neutered dog.
Figures calculated with the same method as our quiz (FEM×K: maintenance energy adjusted for breed, activity, neutering and body condition). They are an estimate: take the quiz for your dog's exact plan, and talk to your vet about any health concern.
Two minutes: enter weight, age and activity to get the exact portion, with 30% off your first order.
An adult Cavalier of 7 kg, neutered and moderately active, needs about 304 kcal a day, which is about 267 g of chicken wet food; at 6 kg it is about 238 g, at 8 kg about 295 g. These are estimates: the right portion depends on body condition, and treats count.
The FCI breed standard gives 5.4 to 8 kg for both males and females. In UK vet records the median adult Cavalier weighed 10.5 kg, so body condition matters more than the number: you should feel the ribs easily, which is a score of 4 to 5 on the WSAVA 9-point scale.
Usually the same complete food as before. Under the ACVIM guidelines no special diet is needed while the heart is not significantly enlarged (stages A and B1). Once the vet finds significant enlargement, the guidelines suggest a mild cut in sodium and a tasty food with enough protein and calories to keep the dog in good body condition; snacks and the foods used for tablets count too.
Yes, more than many breeds. In a study of 200 post-mortems Cavaliers were among the breeds with an increased relative risk of chronic pancreatitis, and they are also linked to exocrine pancreatic insufficiency, which in this breed is typically diagnosed at around 6 years of age. Diagnosis is up to your vet; at home, keep scraps and the bin out of reach.
Start with a body condition check at your vet's: the vet can set a realistic target weight and a safe pace. At home, count everything your dog eats, treats and whatever you hide tablets in included, because for a small dog a few extras a day add up. It is common in the breed: Cavaliers had 1.5 times the odds of crossbreeds of being overweight in UK vet records.
It is when a dog snaps at flies that are not there. It is often blamed on the brain or on behaviour, but in a small study all 7 dogs examined, including 2 Cavaliers, had stomach or intestinal changes, and in one Cavalier it resolved once the gut problem was treated. Your vet can look into both.
Written by the Pappa Fresh editorial team from published veterinary studies (see sources). Not a substitute for your vet's advice.
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