High-quality raw beef, beef heart and beef liver make up 93% of our Leo & Wolf beef and vegetable meatballs. This makes them naturally rich in protein, which is a crucial component of healthy canine diets. Dogs require high levels of quality, complete protein (and the amino acids that build proteins) to support a multitude of bodily functions, including muscle and tissue formulation and repair, hair growth and skin cell formulation, energy formulation and immune system support. Beef is considered a complete protein as it contains all the essential amino acids that dogs need to consume in their diet in order to promote optimal bodily function. Beef is also a great source of B vitamins, zinc and iron. For dogs, offal (heart and liver) is great tasting and well textured, meaning that it contributes greatly to their overall enjoyment of food. Beef offal is also a fantastic source of riboflavin, niacin, thiamin, vitamin B6, vitamin B12, copper, selenium and iron. Raw vegetables make up the rest of the recipe, which are chosen specifically chosen by our nutritionists for their impressive nutritional profile. Cooking processes and preservatives can damage the nutritional profile of pet food products. As Leo & Wolf beef and vegetable meatballs are frozen when fresh and raw, and then served when defrosted, all of the nutrients are naturally preserved so that your pet can digest them efficiently.