Raw food diet for dogs: claimed benefits, real risks and evidence

Chances are you know someone who swears by raw feeding: their dog’s coat gleams, the poop is tiny and dinnertime is the highlight of the day. Meanwhile, your vet may have told you flatly that they don’t recommend it. A raw food diet for dogs is one of the most polarizing topics in pet nutrition, and much of what you’ll read online comes from people who are very sure of themselves on one side or the other.

This guide sorts what’s known from what’s repeated: what raw feeding actually involves, which benefits are claimed and how well they hold up, the risks that are documented, where veterinary organizations stand and, if you still choose to feed raw, how to do it with the least risk to your dog and your family.

What is a raw food (BARF) diet?

BARF stands for Biologically Appropriate Raw Food or Bones And Raw Food. Australian veterinarian Ian Billinghurst popularized it in the 1990s, built on the idea that dogs should eat something closer to what their wild ancestors ate.

A typical raw meal includes:

• Raw muscle meat: chicken, beef, lamb, pork, rabbit, fish.
• Raw meaty bones: chicken wings, backs or necks, ribs.
• Organ meats: liver, kidney, spleen, heart.
• In some versions, pureed vegetables and fruit, eggs and fish oil.

There are plenty of variations. The “prey model” skips plant ingredients and follows popular ratios such as 80/10/10 (80% meat, 10% bone, 10% organs). You’ll see those numbers everywhere in raw-feeding groups, but they don’t guarantee a balanced diet.

Claimed benefits of raw feeding vs. the evidence

Most of the benefits attributed to raw diets come from owner testimonials. Controlled studies are few, small and short-term. Here’s how each claim holds up:

To date, there’s no evidence that raw-fed dogs live longer or get sick less often than dogs eating a good-quality complete commercial diet.

Documented risks of a raw diet for dogs

Bacteria that can sicken your dog and your family

Raw meat can carry Salmonella, Listeria monocytogenes, E. coli (including toxin-producing strains) and Campylobacter. When the FDA tested pet foods, it found Salmonella and Listeria more often in raw products than in other types of pet food, and raw pet food recalls for these bacteria are common.

The risk isn’t limited to your dog. Many raw-fed dogs shed these bacteria in their stool without showing any symptoms, and can spread them through saliva, fur and food bowls. Young children, older adults, pregnant women and people with weakened immune systems are at greatest risk. Antibiotic-resistant bacteria have also been found in raw pet foods. Freezing does not reliably kill these bacteria.

Parasites

Raw meat and organs can transmit parasites such as Toxoplasma, Sarcocystis, Neospora and tapeworms. Raw organs from sheep and other livestock can carry hydatid cysts of Echinococcus, a tapeworm whose eggs are dangerous to people. Deep freezing (around −4 °F / −20 °C for at least a week) lowers the risk from several parasites, and ESCCAP advises more frequent tapeworm treatment for raw-fed dogs. Let your vet know so they can adjust how often to deworm your dog.

Nutrient imbalances

This is the least visible risk and one of the most common. Analyses of homemade raw diets frequently find:

• Calcium and phosphorus out of balance: too much meat and too little bone, or the reverse.
• Shortfalls in vitamin D, vitamin E, zinc, copper or iodine.
• Too much vitamin A when liver is overused.
• Diet-induced hyperthyroidism, reported in dogs fed necks, tracheas or gullets that contained thyroid tissue.

In puppies, a calcium-phosphorus imbalance can cause bone deformities and fractures, especially in large breeds. In adults, the effects of a poorly balanced diet can take months to show up, and by then the damage may be done.

Bones

Raw bones splinter less than cooked ones, but they aren’t risk-free: broken teeth, choking, blockages in the esophagus, stomach or intestines, perforations and constipation with hard, chalky stools. Our guide on whether dogs can eat bones breaks down the differences between bone types.

Where veterinary organizations stand

Major veterinary and public health organizations agree in advising against untreated raw diets:

• AVMA (American Veterinary Medical Association): discourages feeding dogs and cats any animal-source protein that hasn’t first been through a process to eliminate pathogens.
• WSAVA (World Small Animal Veterinary Association), through its Global Nutrition Committee: warns about the risks to pets and people and doesn’t recommend raw diets; for owners who choose them anyway, it stresses strict hygiene and professional formulation.
• AAHA (American Animal Hospital Association): doesn’t advocate or endorse feeding raw or dehydrated nonsterilized foods.
• FDA and CDC: both advise against feeding raw diets to pets because of the public health risk.

Some hospital therapy-dog programs won’t accept raw-fed dogs, precisely because of the risk of passing bacteria to vulnerable patients.

Which dogs shouldn’t eat a raw diet

Even many raw-feeding advocates agree the risk is clearly higher in these cases:

• Puppies, because calcium errors affect growth and they’re more vulnerable to infection. If you have one, see how much to feed a puppy on a complete growth formula.
• Dogs with weakened immune systems, whether from illness or immunosuppressive treatment.
• Dogs with chronic kidney, liver or pancreatic disease.
• Therapy dogs that visit hospitals or nursing homes.
• Households with babies, young children, older adults, pregnant women or anyone immunocompromised.

If you choose to feed raw: how to reduce the risks

If you’ve weighed all of this and still want to feed raw, take these precautions:

1. Have the diet formulated by a board-certified veterinary nutritionist (ACVIM Nutrition or ECVCN), or use a commercial product with an AAFCO “complete and balanced” statement for your dog’s life stage. Don’t wing it with ratios from the internet.
2. Choose products with a pathogen-reduction step, such as high-pressure processing.
3. Freeze meat before feeding to lower the parasite risk.
4. Thaw in the fridge, never on the counter, and don’t refreeze.
5. Keep separate tools and surfaces, wash your hands, and wash the bowl with hot, soapy water after every meal. Pick up leftovers after 20–30 minutes.
6. Pick up poop promptly and don’t let your dog lick faces, especially children’s.
7. Schedule regular checkups: weight, body condition, bloodwork when your vet recommends it, and fecal tests.

Lower-risk alternatives to a raw diet

If what appeals to you about raw feeding is giving your dog something less processed or more meat-forward, there are safer routes:

• A good-quality complete dry or canned food, chosen with care: our guide on how to choose dog food explains what to look for on the label.
• Home-cooked food formulated by a veterinary nutritionist. You’ll find the details in our guide to homemade dog food.
• Commercial gently cooked, refrigerated food, as long as it carries a complete and balanced statement.
• Safe chews instead of bones to meet your dog’s need to gnaw.

Frequently asked questions

Is a raw diet better than kibble?

There’s no evidence that it is. No studies show that raw-fed dogs live longer or have fewer diseases than dogs eating a good-quality complete commercial food. What is documented are the microbial and nutritional risks. A well-chosen kibble, a complete canned food or a properly formulated home-cooked diet are all much lower-risk options.

Does freezing raw meat kill Salmonella?

No. Freezing stops bacteria like Salmonella and Listeria from multiplying, but many survive and start growing again once the meat thaws. Freezing does lower the risk from some parasites, which is why it’s recommended, but it doesn’t make raw meat safe. Only cooking or specific pathogen-reduction processes meaningfully cut the bacterial load.

Can you mix raw food and kibble in the same meal?

You’ll often hear that you shouldn’t because they “digest at different rates,” but there’s no solid evidence that mixing them harms a healthy dog. What matters is that the overall diet is balanced and that you account for the calories in both. The raw portion still carries its bacterial and parasite risks, mixed or not.

Is freeze-dried raw dog food safer than frozen raw?

Not necessarily. Freeze-drying and dehydrating remove water, but they don’t guarantee that bacteria are gone unless the product also goes through a dedicated pathogen-reduction step. Freeze-dried raw products have been recalled for Salmonella and Listeria. If you use them, follow the same hygiene rules as with raw meat.

My dog already eats raw and seems fine. What should I do?

Talk openly with your vet so they can review the diet and run the right checks: weight, bloodwork and fecal tests. If it’s homemade, ask a veterinary nutritionist to review the recipe even if your dog looks healthy, because many imbalances take months to cause symptoms. And keep up the hygiene routine at home, especially if you live with vulnerable people.

Sources

• American Veterinary Medical Association (AVMA): policy on raw or undercooked animal-source protein in cat and dog diets.
• WSAVA Global Nutrition Committee: information on raw meat-based diets for pets.
• U.S. Food and Drug Administration (FDA), Center for Veterinary Medicine: risks of raw pet food.
• Centers for Disease Control and Prevention (CDC): guidance on raw pet food and household safety.
• American Animal Hospital Association (AAHA): position statement on raw protein diets.