A 10-pound dog should be fed two small meals daily with approximately 1 cup of food each, using a dog food made primarily of animal protein, according to Hartz. Veterinarians frequently recommend combining wet and dry dog food, since no study has established one as better than the other.
While too much protein in a dog's diet can cause hyperactivity, dogs need at least 18 percent protein for maintenance and 22 percent for growth and reproduction, states Hartz. They also need at least 5 percent fat in their daily diet; do not use fat-free dog foods. For every 16 ounces of dry dog food consumed, a dog should have at least 32 ounces of water. Avoid feeding a dog raw food, which can lead to illnesses including dermatitis and seizures.