Raw feeding is one of the most polarised subjects in dog ownership. Advocates report transformed coats, smaller stools and better energy; the veterinary establishment points to contamination studies and nutritional imbalance.
Both camps have a point, and the useful version of this article is the one that sets out what is actually known.
What raw feeding means
Several distinct approaches share the label:
- BARF (biologically appropriate raw food): raw meat, bone, offal, plus vegetables and fruit
- Prey model: meat, bone and organ only, in proportions approximating a whole prey animal, no plant matter
- Commercial complete raw: prepared frozen products formulated to meet FEDIAF or AAFCO nutrient profiles
- Home-prepared: ingredients assembled by the owner
The distinction matters enormously, because most of the documented problems come from home-prepared diets rather than properly formulated commercial ones.
The claimed benefits
Smaller, firmer stools. This one is real and easy to verify. Raw diets are highly digestible with less fermentable fibre, so there is less residue.
Coat and skin improvement. Frequently reported. Often attributable to higher fat content and to the change itself — a dog moving from a poor-quality food to any better one improves. It is rarely a controlled comparison.
Dental health. Chewing raw meaty bones does reduce plaque; several small studies support this. It also causes fractured teeth, which is the other half of the ledger.
Better energy, fewer allergies, longer life. These are the claims with the least supporting evidence. There are no long-term controlled studies comparing lifespan or disease incidence on raw versus conventional diets. Absence of evidence is not evidence of absence, but it does mean the strong claims are not currently backed.
The documented risks
Bacterial contamination
This is the best-evidenced concern and it is not seriously disputed. Multiple studies across several countries have found *Salmonella*, *Listeria*, *E. coli* and *Campylobacter* in commercial raw pet food at rates far higher than in processed food.
Two consequences:
- Dogs can become ill, though many healthy adult dogs carry these organisms without symptoms
- Dogs shed the bacteria in their faeces and saliva, which is the bigger issue. There are documented human infections traced to raw-fed pets, and public health bodies advise against raw feeding in households with infants, elderly people, pregnant women or anyone immunocompromised
Antibiotic-resistant bacteria
More recent studies have found multidrug-resistant organisms in raw pet food, which raises a broader public health question beyond the individual household.
Nutritional imbalance
Analyses of home-prepared raw recipes — including many from books and websites — have repeatedly found significant deficiencies and excesses. Calcium-to-phosphorus ratio is the most common failure, and it is the most consequential in growing dogs, where it causes skeletal disease that cannot be undone.
Vitamin D, vitamin E, zinc, copper and iodine are also commonly wrong.
Bone-related injuries
Fractured teeth, oesophageal obstruction, gastrointestinal perforation and constipation. Weight-bearing bones from large animals are the worst offenders.
Parasites
Raw meat, especially wild game and some fish, can carry parasites that freezing does not always kill.
If you decide to feed raw
The honest position: many people feed raw and their dogs do well. If that is your choice, these are the things that most reduce risk.
Use a complete commercial raw food from a manufacturer that formulates to FEDIAF or AAFCO profiles, employs a qualified nutritionist, and tests for pathogens. This removes the single biggest risk — getting the nutrition wrong.
If home-preparing, use a qualified veterinary nutritionist to formulate the recipe. Not a website, not a Facebook group, not a book. A board-certified nutritionist will build a recipe for your dog and tell you what to supplement.
Handle it like raw chicken for people, because it is:
- Separate chopping boards and utensils
- Wash hands, surfaces and bowls with hot soapy water after every meal
- Thaw in the fridge, not on the counter
- Do not leave food down for more than twenty minutes
- Store frozen at the correct temperature
Do not let a raw-fed dog lick faces, particularly children’s, and wash hands after picking up faeces.
Do not feed raw to a household with immunocompromised members, or to a dog visiting hospitals or care homes as a therapy animal — most schemes prohibit it for exactly this reason.
Tell your vet. Not so they can argue with you, but because it changes the differential diagnosis if your dog develops diarrhoea, and because raw-fed dogs in a veterinary hospital may need isolation precautions.
Middle grounds
Several options capture some benefits with fewer risks:
- Gently cooked complete diets — fresh, minimally processed, but cooked to eliminate pathogens
- High-pressure processed raw, which reduces bacterial load without heat
- Freeze-dried raw, though this does not reliably eliminate pathogens
- A conventional complete diet with fresh toppers — a spoon of cooked meat, sardines, or vegetables
The bottom line
There is no evidence that a well-formulated conventional diet harms dogs, and there is good evidence that a badly formulated raw diet does. If raw appeals to you, the way to do it responsibly is to use properly formulated food and to treat kitchen hygiene seriously.
What matters most, on any diet, is that the food is complete and balanced for the life stage, that your dog maintains a lean body condition, and that they do well on it over years.
