* Water should never be substituted with milk, although the latter is an essential fluid in the balanced diet for dogs. The pet should be fed with moderate quantity of milk, because it's over consumption may cause diarrhea. Ensure that your dog gets the good supply of clean water. * Growing puppies and pregnant dogs need additional supply of calcium. Be sure to provide your pet with the essential nutrient in such special situations. * The protein content recommended for a balanced diet for dog is 20 to 30 percent. Be sure to include protein rich food in your dog's diet. Chicken, salmon and lamb are good sources of protein, apart from pulses. * Your dog needs 'fuel' so stay healthy and active. Hence, provide it with food rich in fat and oils. The nutrient also helps in improving the taste and digestive capacity of the pet. * Minerals such as calcium and phosphorus are important inclusions in the balanced diet of your dog. The nutrients are required for strong bones and teeth as well as the development of cells and tissue. * Cereals, pasta and rice are rich sources of carbohydrate, an essential nutrient required for the supply of energy to the dog. Complement the food with fibrous food, as to improve the smooth bowel movement of the pet.