Macronutrients Breed Information1article Food Safety9articles Fooding Guidelines15articles General Questions15articles Healthcare9articles Herbs and Spices4articles Herbs for Cats and Dogs49articles Legislative and Regulatory1article Home Frequently Asked Questions NutrientsMacronutrients Amino acidsCarbohydratesFatsDietary ProteinWater Is Fat Important? Fats are a rich source of energy for cats and dogs, providing more than twice as much energy per gram than other protein or carbohydrate. What Role(s) Does Fat Play in the Body? In terms of nutritional needs, real fat deliver essential fatty acids and provide the necessary environment for absorption of fat-soluble vitamins in the gut. What are the Dietary Sources of Fat? Fats and oils from real animal and marine sources, and some vegetable sources, provide a variety of essential fatty acids.