Can Cats Eat Dog Food?
Cats can eat dog food occasionally without immediate harm, but dog food should not be a regular part of their diet. Cats are obligate carnivores with specific nutritional requirements that dog food does not meet - particularly taurine, arachidonic acid, and higher protein levels. Long-term feeding of dog food to cats causes serious nutritional deficiencies.
Key Takeaways
- Cats require taurine, an amino acid they cannot synthesize themselves.
- Kittens are even more vulnerable to nutritional deficiencies than adult cats.
- Some prescription diets for specific conditions may cross species but only under veterinary supervision.
Explanation
Cats require taurine, an amino acid they cannot synthesize themselves. Dog food contains little to no taurine because dogs produce their own. Taurine deficiency in cats causes heart disease (dilated cardiomyopathy), vision problems, and reproductive issues. These conditions develop over months of inadequate diet.
Cats also need more protein than dogs (26% minimum vs 18%), more fat, and specific fatty acids like arachidonic acid that dog food lacks. Cat food is formulated for these carnivore-specific needs. Dog food, designed for omnivores, contains more carbohydrates and plant-based ingredients.
An occasional bite of dog food (a cat stealing from a dog's bowl) is not dangerous. But regular feeding of dog food, or using it as a substitute when out of cat food, will lead to malnutrition. If you have both cats and dogs, feed them separately to prevent food-sharing.
Things to Know
- Kittens are even more vulnerable to nutritional deficiencies than adult cats.
- Some prescription diets for specific conditions may cross species but only under veterinary supervision.
- Dogs can eat cat food occasionally, though it is too rich and may cause digestive upset.