Can Dogs Eat Cat Food?

Can Dogs Eat Cat Food?

by Michael
(London, UK)

No! The answer is in the evolution of cats and dogs and the divergence of their “evolutionary paths” some 30 million years ago.

Both are scientifically classified within the class Mammalia and within the order Carnivora. The divergence in evolution resulted in dogs becoming members of the Canoidea superfamily and cats becoming members of the Feloidea superfamily1.

The Canoidea includes species “with very diverse dietary habits”1 while Feloidea includes species that have evolved as “strict carnivores”.

There would seem to be some debate as to whether the dog is carnivorous. Incidentally species in the order Carnivora are not necessarily carnivorous. “Most species of Carnivora are, to some degree, omnivorous, except the Felidae (cats)”2.

Linda P Case in her book1 says that dogs are omnivorous while other authors say that they are carnivorous3. Dogs are said to be adaptable carnivores4.

It probably doesn’t matter. What matters is that the cat is a strict or obligate carnivore while the dog is more flexible.

The ancestors to the domestic cat, the African wildcat and the European wildcat both feed entirely on small animals such rodents.

The cat has stuck to the strictly carnivorous diet even in domestication (perhaps, however, in 1000 or more years time the domestic cat will be less strict about what it needs to eat?). This has resulted in specific physiological and metabolic adaptations. In other words the cat’s digestive tract and chemistry has evolved to accept animal tissue and almost nothing else. There are minor exceptions. Cats do eat grass and one big cat, the snow leopard deliberately eats vegetation to enhance its absorption of oxygen as it lives at high altitude.

The cat then has “peculiarities in nutritional requirements”1taurine, arginine, arachidoonic acid and preformed vitamin A, for instance. See also Taurine Deficiency in Cats. Or how rice in cat food can affect taurine. Do Bengal cats need more taurine?

For a domestic cat, a diet without animal tissue would require supplementary additives.

A dog eating cat food would find it too rich it is said and it might cause diarrhea and obesity. One commentator said that a dog on a long term cat food diet might lose its eyesight5. I don’t know if this is true.

Dogs like the taste of cat food because it is rich in protein (higher protein content than dog food5) but can dogs eat cat food? Yes in small doses and occasionally but NO as a long term diet.

Associated page:

Raw Food Diet – Homemade Cat Food

Can Dogs Eat Cat Food? – Notes:

1. The Cat, Its Behavior, Nutrition & Health by Linda P Case.

2. http://en.wikipedia.org/wiki/Carnivora

3. http://en.wikipedia.org/wiki/Carnivore

4. http://www.rawfed.com/myths/omnivores.html

5. http://answers.yahoo.com/question/index?qid=20060916061208AAJUFBB

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Can Dogs Eat Cat Food?

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Mar 14, 2011 Dogs should NEVER eat catfood
by: Anonymous

Purina One is a Great dog food. I feed my dog purina One with oatmeal and natural blends..Look at the recall list of pet foods…Purina is NOT listed.BUT, I also Cook for my dog…boiled chicken, rice,green beans, and carrots…so she does not eat JUST dog food.I would not recommend any dog to eat catfood…ever! From experience! It causes diarhea, kidney problems,etc.in dogsw.


Dec 10, 2010 Food for both Cats and Dogs
by: Andrew @ WestCoastPetSupply.com

There are food formulas that work great for both cats and dogs. An example is Wysong, they have several great dry and canned formulas that are designed for both Cats and Dogs!


Nov 17, 2010 on food
by: Kathy W

After reading on this page that Purina does animal testing i was quite upset since purina was our cats main diet. Not only the dry food but the canned as well was also made by Purina. Friskies and Fancy Feast. I have not found out the extent of their animal testing but we are in the process of weaning our cats off of the Purina Dry which they love. I have been feeding Lia their Pro Plan for senior cats 11 and older and hes doing very well on it. He has so much extra energy and seems very happy. He doesnt seem so lethargic like he was before. We have switched back to the Blue Buffalo brand of Wilderness, We also are going to add Wellness as their main course. We however are stumped on the canned since they hate Friskies. I tried some other cans over the weekend and Lia knew immidiatly it wasnt fancy feast.


Nov 17, 2010 on food
by: Kathy W

After reading on this page that Purina does animal testing i was quite upset since purina was our cats main diet. Not only the dry food but the canned as well was also made by Purina. Friskies and Fancy Feast. I have not found out the extent of their animal testing but we are in the process of weaning our cats off of the Purina Dry which they love. I have been feeding Lia their Pro Plan for senior cats 11 and older and hes doing very well on it. He has so much extra energy and seems very happy. He doesnt seem so lethargic like he was before. We have switched back to the Blue Buffalo brand of Wilderness, We also are going to add Wellness as their main course. We however are stumped on the canned since they hate Friskies. I tried some other cans over the weekend and Lia knew immidiatly it wasnt fancy feast.



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