According to veterinarians, plain, canned pumpkin for dogs is good for dogs. It contains a mixture of vitamins, like vitamin A, E and C, as well as iron and potassium.
“Canned pumpkin (or pumpkin puree) can add an extra source of fiber for dogs and can be mixed in with their regular dog food,” says Dr. Anthony Hall, a veterinarian with Private Vet Consulting.
He stresses, however, that it’s important not to mistake canned pumpkin for pumpkin pie filling or mix, which can cause diarrhea in dogs. It’s also important not to give your dog too much canned pumpkin, as excessive fiber can lead to constipation.