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Raw Diets for Cats: What the Evidence Actually Says

An ancestral diet, prepared in a modern kitchen, carries modern risks.

2 min read
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A cat with a mouse it has caught outdoors
Photo via Wikimedia Commons

Cats are obligate carnivores, and in the wild they'd eat whole prey — muscle, organ, bone, and all, raw. That biological fact is the entire basis of the argument for raw feeding, and it's a real one. It's also where the agreement between raw-feeding advocates and mainstream veterinary organizations mostly ends.

The argument for it

Proponents point out that commercial raw diets, when properly formulated, closely mirror a cat's evolutionary diet: high protein, moderate fat, minimal carbohydrate, and natural sources of taurine and other nutrients that can degrade during high-heat processing. Some owners also report shinier coats, smaller stool volume, and enthusiastic eating — though these are observational reports rather than data from controlled studies.

The argument against it

Major veterinary and public health bodies, including the American Veterinary Medical Association and the FDA, generally advise against raw diets, for reasons that are less about the concept and more about execution risk:

  • Pathogen contamination. Raw meat carries a meaningfully higher risk of Salmonella and Listeria than cooked or commercially processed food — a risk to the cat, and to anyone in the household handling the food or cleaning up after a cat that carries it asymptomatically.
  • Nutritional imbalance. A raw diet that isn't carefully formulated (correct calcium-to-phosphorus ratio, adequate taurine, proper vitamin levels) can cause serious deficiencies over time. This is a common failure point in home-prepared raw diets that aren't following a veterinary nutritionist's recipe.
  • Bone hazards. Whole raw bones are softer and more digestible than cooked bones, but ground bone fragments and larger bone pieces can still cause choking, dental fracture, or intestinal injury.

Commercial raw vs. home-prepared

This is a meaningful distinction that often gets lost in the debate. Commercial raw diets that are formulated to AAFCO standards and have undergone pathogen-reduction processing (like high-pressure processing) carry a different, generally lower, risk profile than a home-prepared raw diet assembled from supermarket meat without a nutritionist-designed recipe.

If you're considering raw feeding, working with a veterinary nutritionist to formulate or select a diet — rather than following a generic online recipe — meaningfully reduces the nutritional risk.

A middle path some vets suggest

For owners drawn to raw feeding's rationale but wary of the risks, options include commercially prepared, pathogen-tested raw diets, or freeze-dried/gently cooked diets that aim for a similar nutrient profile with a reduced pathogen risk.

Who should avoid it entirely

Households with immunocompromised members, very young children, elderly residents, or a cat that is itself immunocompromised (undergoing chemotherapy, for example) are generally advised to avoid raw feeding altogether, given the added pathogen exposure risk to both the cat and the people around it.

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