Proteins are the building blocks of the body. The proteins you feed your dog (for example, chicken or beef) ensure energy release, the formation of muscle, skin, hair, antibodies, enzymes, blood clots, hemoglobin and hormones.
Fats and oils provide your dog with the fuel he needs to stay active. Fats and fatty acids are a source of vitamins and are essential for healthy skin and coat, as well as for a strong immune system.
Although not essential, carbs found in cereals, rice and pasta are an excellent source of energy. Fiber also promotes the digestive process.