There are many myths surrounding the biology or Cats and Dogs. Cats and Dogs are classified by biology and zoology as carnivores but yet is commonly believed that cats and dogs are more like human omnivores and can or should eat a lot of carbohydrates. The scientific taxonomy of animal identification classifies both cats and dogs as carnivores. That means that meat is the primary food source for cat and dogs.
Myths, Wise Tails, and Biology (S1E2)