I read this on www.petfoodreport.com "Dogs and cats each have special dietary needs and should be fed the appropriate pet food. Cats should not eat dog food because it does not provide all the essential nutrients a healthy cat needs. In short, dog food is designed to meet the nutritional needs of a dog and cat food is designed to meet the needs of a cat" makes sense, right? My dogs don't take cat food very well, they love it and have gotten into my cats wet food sometimes but they usually end up with diarrhea so I keep it away from entirely.
My dog insists on eating my cats food so I checked with the vet. The answer was it would not hurt the dog but he probably likes it because it has more fat than dog food. The crazy thing is if I put cat food in the dogs regular food bowl neither animal will eat it! Not very smart are they?!
I don't think cat food can hurt a dog in the short term, BUT in the long run,it may.Cat food is formulated to fulfill the nutritive needs of felines to help maintain their health & vitality,- & the same goes for dogs & dog food.Cats who are fed only table food that humans eat may, w/ time,go blind because,unlike cat food, people food is not fortified w/ taurine, a mineral or element cats need in order to see. And the same situation applies w/dogs & dog food only instead of taurine for vision it is some other mineral needed for a necessary canine function & health. Keep in mind that some foods found in cat food are safe & edible for cats but may actually be intolerable,cause discomfort, or be harmful, even lethal, to dogs,-such as onions,garlic,grapes,chocolate & raisins. That said,I say,on a short term, cat food won't hurt a dog but, long term, it WILL hurt the dog because cat food will not provide it with the proper,necessary balance of proteins,carbs,fats,etc.nor the minerals or elements necessary for optimal canine health, vigor, vitality, & well-being.They may become arthritic sooner & to a worse degree without the nutrition their joints require, or their coats may become dull,lifeless & sparse while their skin turns itchy, scaly & prone to "hot spots" all because the cat food they are being fed does not provide any or the adequate amount or balance of protein,fat,Vitamin E or whatever it is that is a naturally required component of the canine diet for optimal health,functioning,appearance & well-being. You know the saying..."You are what you eat". ?????