Raw feeding and BARF for dogs: complete guide, benefits, risks, and alternatives
Raw feeding is one of the most divisive topics in pet nutrition. On one side, enthusiastic owners who claim the switch to raw meat transformed their dog's health. On the other, veterinarians and health agencies warning of documented, measurable risks. Between the two sits a mass of misinformation, marketing, and anecdote.
This article does not tell you what to do. It gives you the facts: what science knows for certain, what remains debated, what constitutes genuine danger, and what alternatives exist if you want to move toward less processed food without accepting all the risks of a full raw diet.
French version available here: Raw feeding et BARF pour chien : guide complet.
What exactly is BARF?
BARF stands for either "Bones And Raw Food" or "Biologically Appropriate Raw Food" depending on the source. Both definitions point toward the same concept: feeding a dog by mimicking, as closely as possible, what a wild canid would eat.
The most widely cited reference ratio is 80/10/10:
- 80 pourcent raw muscle meat (beef, chicken, lamb, rabbit, etc.)
- 10 pourcent raw meaty bones (chicken neck, wings, ribs, spine)
- 10 pourcent organ meat (at least 5 pourcent liver)
Some variants add vegetables, eggs, seafood, or superfoods, but the core of BARF remains this three-part ratio. The central premise is that the domestic dog, despite millennia of coevolution with humans, retains a digestive system fundamentally similar to the wolf - short, acidic, adapted to raw meat.
This is a debatable premise. But it is the foundation of the BARF argument.
There is also "PMR" (Prey Model Raw), an even stricter version that excludes vegetables and relies solely on whole prey or prey-model cuts. And "home-cooked", which applies the same principle with gently cooked meats - a less risky variant that does denature some heat-sensitive nutrients.
The biological argument: is it valid?
BARF advocates argue that dogs are obligate or near-obligate carnivores whose biology never evolved to digest processed grains. This argument is partially correct and partially overstated.
What is accurate: the dog's digestive system genuinely differs from a human's. Gastric pH in dogs is more acidic (between 1 and 2), enabling them to neutralise some bacteria present in raw meat. Their intestinal tract is shorter, reducing exposure time to pathogens. These are real adaptations.
What is overstated: the claim that dogs have no adaptation to starch is false. A landmark 2013 study in Nature by Axelsson et al. identified that domestic dogs carry an average of 7.4 copies of the AMY2B gene (versus 2.2 in wolves), giving them significantly greater capacity to digest starch. Domestication produced real digestive adaptations.
This does not mean corn-and-wheat kibble is the ideal canine diet. It means the biological argument does not cut as cleanly as BARF advocates suggest.
What science says about the claimed benefits
The benefits most often cited by BARF proponents include: shinier coat, smaller and less odorous stools, better dental health, increased energy, easier digestion, and reduced food allergies. What does the research say?
Coat and skin: anecdotal data is abundant, but controlled studies are scarce. A literature review published in the Journal of Animal Physiology and Animal Nutrition (Freeman et al., 2013) concludes that evidence for cosmetic benefits is insufficient for solid conclusions.
Stools: here the data is more consistent. Raw diets do produce smaller stools because they contain less undigestible fibre. This is not necessarily a sign of better digestive health - it is simply the result of reduced residue.
Dental health: raw meaty bones can mechanically reduce tartar. This is one of the better-supported benefits of BARF. A 2016 study by Marx et al. in BMC Veterinary Research showed a significant reduction in dental calculus in dogs consuming raw meaty bones. However: bones can also fracture teeth (see risk section below).
Food allergies: dogs with allergies to common proteins or grains may benefit from a raw diet using novel protein sources. But true food allergies account for less than 10 pourcent of dermatitis cases in dogs. The correlation between BARF and reduced allergies is often simply a protein-change effect.
Real risks: do not minimise them
This is where the debate becomes serious. The risks of raw feeding are documented, measured, and cannot be dismissed with "dogs' ancestors ate raw".
Bacterial contamination
The FDA conducted a study in 2012 on 196 commercial raw pet foods. The results are clear: 7.6 pourcent of samples tested positive for Salmonella and 15.4 pourcent for Listeria monocytogenes. Both pathogens are dangerous not only for the animal (dogs are relatively resistant) but especially for humans sharing the household, particularly children, the elderly, and immunocompromised individuals.
A Dutch study by Lefebvre et al. (2008) showed dogs fed raw food were 3 times more likely to shed Salmonella in their faeces than dogs fed kibble. This is not a theoretical risk - it is a documented zoonotic transmission risk.
The WHO and FDA explicitly advise against raw pet food diets in households with at-risk individuals. This position is consistent with available surveillance data.
Nutritional imbalances
The 80/10/10 ratio is an empirical rule, not a validated nutritional formulation. A study by Dillitzer et al. (2011) published in the British Journal of Nutrition analysed 95 home-prepared raw recipes: 60 pourcent had at least one nutritional imbalance (excess or deficiency). Calcium, iodine, manganese, and fat-soluble vitamin deficiencies are the most frequent.
A poorly formulated raw diet can cause chronic deficiencies that only manifest clinically after months. This is particularly critical in growing puppies, pregnant females, and dogs with chronic conditions.
Dental fractures and obstruction
Bones, even raw meaty ones, can fracture teeth. Cooked bones (never to be given in BARF) and large-diameter bones are most dangerous. But raw bones themselves carry risk: splinters from poultry bones (neck, wing) can fragment and cause intestinal obstruction or perforation. Emergency veterinarians regularly treat such cases. The risk is lower with correctly sized bones fed under supervision, but it is never zero.
Parasite risk
Raw meat can contain larvae of Toxocara canis, Trichinella spiralis, or Neospora caninum. Pre-freezing (at least -20°C for 3 days) significantly reduces but does not eliminate this risk. Sourcing from suppliers certified for human consumption also lowers risk.
Comparison table: BARF vs premium kibble vs alternatives
| Criterion | Home BARF | Entry-level kibble | Premium kibble | Air-dried | Freeze-dried |
|---|---|---|---|---|---|
| Protein quality | High (if well formulated) | Low | High | Very high | Very high |
| Bacterial risk | High | Very low | Very low | Low | Very low |
| Nutritional balance | Variable (high risk) | Guaranteed | Guaranteed | Guaranteed | Guaranteed |
| Monthly cost (20kg dog) | €80-150 | €30-50 | €60-100 | €120-180 | €150-250 |
| Convenience | Low | Very high | Very high | High | High |
| Dental health | Good (bones) | Moderate | Good | Good | Good |
Alternatives to full BARF
If you are persuaded by the raw feeding arguments but concerned by the risks, several alternatives allow you to move toward less processed food without accepting all the compromises of a full raw diet.
Air-dried
Air-drying dehydrates ingredients at low temperature (typically 55-70°C) over an extended period. This preserves a large share of nutrients (including heat-sensitive amino acids and vitamins) while eliminating enough moisture to make the product shelf-stable and microbiologically safe.
ZIWI Peak Air-Dried Beef is the reference in this segment. Its composition lists over 90 pourcent ingredients of animal origin. Its PetFoodRate score is A. It is one of the very few BARF alternatives offering comparable nutritional density without the microbiological risks.
Main downside: price. ZIWI Peak runs around £12-16 for 130g, making it one of the most expensive foods per kilo on the market.
Freeze-dried
Freeze-drying freezes food then applies a vacuum to remove water through sublimation. Freeze-dried foods retain up to 95 pourcent of original nutrients. Brands like Stella & Chewy's, Primal Pet Foods, and K9 Natural use this process.
The advantage over air-dried: even less thermal processing. The downside: higher cost still, and a different texture some dogs find off-putting initially.
Home-cooked
Quality meat (chicken, turkey, beef, lamb) gently steamed or poached, combined with vegetables and completed with a nutritional supplement like BalanceIT or JustFoodForDogs, can constitute a balanced diet that is significantly safer than raw. Cost is comparable to home BARF, convenience is lower than kibble, but food safety is considerably better.
Mixed: premium kibble with fresh toppers
A pragmatic approach uses well-formulated premium kibble as a base with fresh toppers added: poached egg, canned sardines in water, cooked meat, vegetables. This approach is endorsed by many veterinary nutritionists as a sound compromise between nutritional quality, safety, and accessibility.
Who should consider BARF?
If you are prepared to implement a raw diet, the conditions that make the risk acceptable are:
- Sourcing exclusively from suppliers certified for human consumption
- Working with a veterinary nutritionist to formulate the diet
- Pre-freezing all meats for at least 72 hours at -20°C
- No immunocompromised individuals, young children, pregnant women, or elderly people in the household
- Adult healthy dog (not puppies, not pregnant females, not dogs with chronic illness)
- Rigorous hygiene and equipment cleaning after every preparation
If all these conditions are met, a well-formulated BARF can be excellent nutrition. But "well-formulated" is the key phrase: improvised BARF based on the 80/10/10 rule without professional oversight is not healthy feeding - it is a gamble.
What official bodies say
The official position of leading veterinary organisations is consistent:
- FDA (US): advises against raw pet food due to bacterial contamination risks, particularly for at-risk populations
- AVMA (American Veterinary Medical Association): opposes raw or undercooked animal-source protein diets for pets
- ESCCAP (European Scientific Counsel Companion Animal Parasites): recommends pre-freezing and certified sourcing when raw is used
- FEDIAF (European Pet Food Industry Federation): notes that processed and certified commercial pet foods offer safety guarantees that home-prepared diets cannot consistently provide
These positions are not motivated by preference for the pet food industry. They reflect available food safety surveillance data.
True cost of BARF: calculating honestly
For a 20 kg dog consuming approximately 2-3 pourcent of its body weight in food daily, that is 400-600 grams of BARF per day, or around 14-18 kg per month.
Home BARF cost (quality sources, sufficient variety):
- Muscle meat: €5-7/kg - €60-90
- Raw meaty bones: €2-4/kg - €12-20
- Organs: €3-5/kg - €8-15
- Supplements (if used): €15-25/month
- Total: €95-150/month
Premium kibble (Orijen, Acana, Taste of the Wild):
- €60-100/month for a 20 kg dog
ZIWI Peak air-dried:
- €120-180/month for a 20 kg dog (though smaller daily volumes thanks to density)
BARF is not necessarily cheaper than premium alternatives. The cost argument only holds if you source from a butcher using offcuts of uncertain traceability - which reduces the control over hygiene and provenance.
PetFoodRate score table: BARF alternatives
| Product | Score | Animal protein | Format |
|---|---|---|---|
| ZIWI Peak Air-Dried Beef | A | 96 pourcent | Air-dried |
| Orijen Original | A | 85 pourcent | Kibble |
| Acana Wild Atlantic | A- | 75 pourcent | Kibble |
| Taste of the Wild High Prairie | B+ | 70 pourcent | Kibble |
| Standard supermarket kibble | D-E | 20-35 pourcent | Kibble |
To explore our top recommendations, see our best dog food 2026 independent ranking.
BARF for puppies and cats: two special cases
Puppies: the warning is even stronger for puppies. Calcium, phosphorus, vitamin D, vitamin A, and DHA requirements are critical during growth. Chronic imbalance can cause irreversible skeletal abnormalities. If you want to feed a puppy raw, veterinary nutritionist supervision is not optional.
Cats: BARF for cats follows different principles. The cat is an obligate carnivore (unlike dogs, which are opportunistic omnivores). Its dependence on taurine, arachidonic acid, and preformed vitamin A makes formulation even more critical. Taurine deficiency in cats can cause dilated cardiomyopathy. The same rule applies: professional formulation is mandatory.
BARF and multi-pet households: an underrated risk
One aspect of the BARF debate that receives insufficient attention in owner communities is the risk within multi-species or multi-pet households. If you have both a dog on raw and a cat, or a dog and young children, the cross-contamination vectors multiply.
Shared bowls and food preparation surfaces: raw meat surfaces, cutting boards, and bowls that contact raw meat become vectors for Salmonella and Listeria if not cleaned with hot soapy water and a food-grade disinfectant after every use.
Dog licking and physical contact: a dog that has just eaten raw meat carries bacteria on its muzzle and paws. Studies have documented Salmonella shedding in faeces lasting up to 7 days after a single raw feeding event. Young children who interact closely with dogs face a real, not theoretical, exposure.
Outdoor elimination: dogs on raw diets shed more pathogens in stools. In shared outdoor spaces (gardens, parks), this creates exposure risk for other animals and people.
None of these concerns make BARF impossible in multi-pet or family households. But they do require a level of hygiene discipline that is genuinely demanding - and that many lifestyle BARF guides understate.
Raw feeding communities: valuable but not neutral sources
Online raw feeding communities (Facebook groups, Reddit r/rawpetfood, dedicated forums) are often the first place owners encounter BARF information. These communities are passionate, knowledgeable, and genuinely helpful for practical questions about sourcing, preparation, and transitioning.
They are also self-selected populations. Owners whose dogs thrived on BARF share their experiences enthusiastically. Owners whose dogs experienced problems - contamination events, nutritional deficiencies, obstruction - are less likely to be active community members.
This survivorship bias does not mean BARF communities are wrong. It means their collective testimony cannot substitute for controlled clinical evidence. Use them for practical guidance; use peer-reviewed research for evidence on risks and benefits.
The transition process: doing it right if you decide to try
If you have read this article in full, understood the risks, and decided to try BARF with appropriate safeguards, the transition matters enormously. Switching a dog from commercial kibble to raw overnight is a recipe for digestive upset.
Recommended transition protocol:
- Week 1: 25 pourcent raw, 75 pourcent current food (single protein source, no bones yet)
- Week 2: 50 pourcent raw, 50 pourcent current food (introduce one type of raw meaty bone, supervised)
- Week 3: 75 pourcent raw, 25 pourcent current food (introduce organs at 5 pourcent of total)
- Week 4 onwards: 100 pourcent raw (progressively add variety in protein sources)
Monitor stool consistency, energy levels, coat condition, and appetite throughout. Loose stools are common during transition and usually resolve within 1-2 weeks. Persistent loose stools beyond 2 weeks warrant a vet consultation and a review of the formulation.
What we think at PetFoodRate
Raw feeding can be excellent nutrition if correctly formulated, sourced from safe suppliers, and implemented in a household with no vulnerable individuals.
It can also be dangerous if improvised, poorly balanced, or implemented without understanding the real bacteriological risks.
Our position is not anti-BARF. It is anti-oversimplification. BARF is not "natural therefore good" just as commercial kibble is not "certified therefore perfect". Both deserve critical scrutiny, data, and honesty about what science knows and does not yet know.
If you want to improve your dog's diet without moving to full BARF, start by checking your current food's score on our product analysis pages and identify what can be improved without unnecessary risk.
Sources
- Freeman L.M. et al. (2013). "Current knowledge about the risks and benefits of raw meat-based diets for dogs and cats." Journal of the American Veterinary Medical Association, 243(11), 1549-1558.
- Axelsson E. et al. (2013). "The genomic signature of dog domestication reveals adaptation to a starch-rich diet." Nature, 495, 360-364.
- FDA (2012). "Get the Facts! Raw Pet Food Diets can be Dangerous to You and Your Pet." fda.gov/animal-veterinary
- Dillitzer N. et al. (2011). "Intake of minerals, trace elements and vitamins in bone and raw food rations in adult dogs." British Journal of Nutrition, 106(S1), S53-S56.
- Marx F.R. et al. (2016). "Raw beef bones as chewing items to reduce dental calculus and the numbers of bacteria in the mouths of dogs." BMC Veterinary Research, 12, 74.
- Lefebvre S.L. et al. (2008). "Evaluation of the risks of shedding Salmonellae and other potential pathogens by guide dogs fed raw meat-based diets." Zoonoses and Public Health, 55(8-10), 470-480.
- FDA - Raw pet food safety guidance
- FEDIAF - European Pet Food Industry Federation safety guidelines
- AAFCO - Nutritional standards for complete pet foods
- NRC - Nutrient Requirements of Dogs and Cats, National Academies
- Max Kowalski, Ingredient Analyst, PetFoodRate