Is Raw Dog Food Safe? What the Evidence Says

If you've spent any time in dog-owner forums or following raw-feeding accounts on social media, you've likely seen two very different messages: one side says raw feeding is the closest thing to a "natural" diet and credits it with shinier coats, better digestion, and fewer allergies; the other, largely from veterinary and public health organizations, warns that raw meat carries a meaningful risk of bacterial and parasitic contamination for both pets and the people who handle their food.

Both of these things can be discussed honestly at the same time. This article lays out what raw feeding actually is, what the documented risks are, what the reported benefits look like once you separate anecdote from research, and how to reduce risk if you decide to feed raw anyway. It does not tell you what to feed your dog — that's a decision to make with your veterinarian, especially if your dog is a puppy, senior, pregnant, or immunocompromised, or if anyone in your household is at higher risk from foodborne illness (young children, older adults, pregnant people, or anyone with a weakened immune system).

What "raw feeding" actually means

"Raw diet" is an umbrella term that covers several different feeding approaches:

• Commercial raw diets — frozen, freeze-dried, or fresh raw food produced by pet food companies, sold as "complete and balanced" or as a supplemental product.
• BARF (Biologically Appropriate Raw Food) — a home-prepared or commercial approach built around raw meat, bone, organs, and typically some vegetables, modeled loosely on what a wild canid might eat.
• Prey model raw (PMR) — home-prepared diets that aim to replicate whole prey ratios of meat, bone, and organ, generally without plant matter.
• Home-prepared raw diets — any raw diet an owner assembles themselves, with or without guidance from a veterinary nutritionist.

The distinction matters because the level of contamination risk, and the risk of nutritional imbalance, can differ between a commercially formulated raw product and a home-mixed recipe that hasn't been checked against a dog's actual nutrient requirements.

What the regulatory and veterinary bodies say

The FDA. The FDA's Center for Veterinary Medicine has directly addressed raw pet food safety, warning that raw diets pose "a public health risk" to both pets and the humans handling their food. In a study the agency conducted on commercial pet food samples, raw pet food tested positive for Salmonella and Listeria monocytogenes far more often than other pet food types — in that FDA sampling, 15 of 196 raw samples were positive for Salmonella and 32 of 196 were positive for Listeria monocytogenes. The FDA has also issued consumer warnings when specific raw products test positive for these pathogens. Its practical guidance for anyone who does feed raw includes washing hands for at least 20 seconds after handling raw pet food, disinfecting surfaces with hot soapy water followed by a diluted bleach solution, thawing frozen raw food in the refrigerator (not on the counter), and refrigerating any uneaten portion immediately. (FDA — Get the Facts! Raw Pet Food Diets Can Be Dangerous; FDA — Tips for Safe Handling of Pet Food and Treats)

The AVMA. The American Veterinary Medical Association's official policy is direct: "The AVMA discourages feeding any raw or undercooked animal-sourced proteins (e.g., meat, poultry, fish, egg, milk) to dogs and cats because of their risk to human and animal health." The AVMA's stated concerns include contamination with Salmonella, Campylobacter, E. coli, Listeria monocytogenes, and, more recently, highly pathogenic avian influenza (H5N1) in raw poultry-based products. The policy also flags that apparently healthy pets can carry these pathogens without showing symptoms, which means a dog can shed bacteria in its stool and expose other pets or vulnerable household members even if it never appears sick itself. The AVMA's suggested alternative is not necessarily "never feed fresh food," but diets processed through methods — such as cooking or high-pressure pasteurization — that are shown to reduce or eliminate pathogens while retaining some of the appeal of a less-processed diet. (AVMA — Raw or Undercooked Animal-Source Protein in Cat and Dog Diets)

Recent research. A research update from the Cummings School of Veterinary Medicine at Tufts University, summarizing newer findings including a Cornell University study of dozens of commercial raw and cooked cat foods, reported that viable bacteria — including Salmonella and E. coli — were cultured from a substantial share of raw products (42% of the raw samples tested in that particular study) and from none of the cooked products in the same study. The same research found parasite DNA only in raw products, and more antibiotic-resistance genes in raw than in cooked samples. The author's stated bottom line: "all forms of raw pet food and treats carry the risk of bacterial, viral, or parasitic contamination." It's worth noting for transparency that the author of that particular summary discloses financial relationships with major pet food manufacturers, which is a real conflict-of-interest consideration to weigh — though it doesn't on its own contradict the separately-sourced FDA and AVMA findings above, which come from independent testing. (Tufts Petfoodology — Raw Pet Food Risks: A Research Update, October 2025)

Documented illness incidents. These aren't hypothetical risks. The FDA and AVMA have both reported real cases tied to raw pet food, including cats that died after H5N1 avian influenza infection traced to raw poultry-based pet food or raw milk, which prompted a voluntary product recall. (AVMA — Cat deaths linked to bird flu-contaminated raw pet food)

What raw-feeding advocates say — and where the evidence actually stands

It's not accurate to say there's no argument on the other side, so it's worth stating the claims raw-feeding advocates make plainly, and then being honest about how well each one is currently supported:

• Claimed benefit: shinier coat, better skin, less shedding. This is one of the most commonly reported observations by raw-feeding owners. It's plausible — diet does affect coat and skin condition — but it's largely anecdotal rather than backed by controlled studies isolating "raw" as the specific variable (as opposed to, for example, a diet simply having a different fat profile or being higher in animal protein than what the dog ate before).
• Claimed benefit: better digestion, smaller and firmer stools. Also widely reported anecdotally, and mechanistically plausible given how different raw meat is from extruded kibble in moisture and fiber content. Independent, well-controlled long-term studies on this specific outcome are limited.
• Claimed benefit: cleaner teeth from chewing raw bone. There is some plausibility to raw bone providing a mechanical cleaning effect, but veterinary sources also flag a real, physical risk from raw bone: fractured teeth, and bone fragments causing gastrointestinal blockages or perforations — a risk that has nothing to do with bacteria and is specific to bone-containing raw diets.
• Claimed benefit: closer to a "natural," ancestral diet. This is more of a philosophical argument than an evidence-based nutritional claim — domestic dogs have coevolved with humans and cooked/processed food for thousands of years, and "what a wild canid eats" isn't automatically equivalent to "optimal nutrition for a specific pet dog," which depends on that individual dog's life stage, health conditions, and activity level.
• A genuinely underexamined question: owner-reported outcomes are exactly that — reported by people who already chose raw feeding and may notice or attribute improvements they were hoping to see. A peer-reviewed survey of dog owners on raw versus commercial cooked diets found that owner perceptions of risks and benefits didn't always line up neatly with the nutritional evidence available, underscoring that this is a subject where belief and documented outcome aren't always the same thing.

None of this means raw-feeding owners are wrong that their own dogs look and do well — many dogs on raw diets are perfectly healthy. It means the specific causal claim ("raw food caused this improvement, and only raw food could have") is harder to verify than it's often presented as being, while the bacterial contamination risk is directly measured and independently confirmed by multiple sources.

Comparing the real trade-offs

If you're going to feed raw anyway: harm-reduction basics

If, after weighing this with your veterinarian, you decide to feed a raw diet, the FDA's and AVMA's own guidance point to a few concrete ways to reduce (not eliminate) risk:

• Choose a commercial raw product that has been through a pathogen-reduction step such as high-pressure pasteurization (HPP), rather than a fully untreated raw product, where that information is disclosed by the manufacturer.
• Store raw food in the freezer or refrigerator, thaw it in the refrigerator (never on the counter), and never let it sit out.
• Wash your hands for at least 20 seconds after handling raw food or your dog's bowl, and disinfect bowls, counters, and utensils with hot soapy water and, where appropriate, a diluted bleach solution.
• Avoid rinsing raw meat under the tap, which can splash bacteria onto nearby surfaces.
• Keep raw pet food and its packaging away from human food preparation areas.
• If anyone in the household is pregnant, elderly, very young, or immunocompromised, discuss the added risk specifically with a veterinarian and a physician before feeding raw.
• If the diet is home-prepared rather than a commercial complete-and-balanced product, have the recipe formally reviewed by a veterinary nutritionist rather than relying on a recipe found online, since nutrient imbalances in home-prepared diets are a separately documented problem from the bacterial risk.

The bottom line

This is a genuine, ongoing debate — but it's not a debate where the two sides carry equal evidentiary weight on every point. The bacterial and parasitic contamination risk of raw pet food is independently documented by the FDA, the AVMA, and university research, and it is not seriously disputed by anyone examining the actual test data. The claimed wellness benefits of raw feeding are plausible and widely reported by owners, but are supported mostly by anecdote rather than controlled research isolating raw feeding as the specific cause. That doesn't make raw feeding indefensible as a personal choice — many owners make it deliberately, with precautions, after discussing it with their vet — but it does mean "raw is simply healthier and the risk is overstated" is not a claim the current evidence actually supports.

If your dog has never had a health issue and you're simply trying to choose the best overall diet, our companion guide on how to choose the right dog food walks through the full range of options — including non-raw fresh diets — with the same evidence-first approach.

This article does not diagnose or treat any medical condition and is not a substitute for individualized advice from your veterinarian, who can weigh your specific dog's health history, life stage, and household situation before recommending a diet.