Norfolk Terriers are small but remarkably active dogs with metabolisms that burn through calories faster than their size might suggest. Because they were originally bred as working ratters, they carry a lean, muscular build that requires a well-balanced diet rich in quality animal proteins, healthy fats, and complex carbohydrates. Their daily caloric needs typically fall between 350 and 500 calories depending on age, activity level, and whether they have been spayed or neutered.
Protein should form the foundation of a Norfolk Terrier's diet, ideally making up at least 25 to 30 percent of total intake. Look for foods where a named animal protein appears as the first ingredient rather than a generic meat meal or plant-based filler. Healthy fats from sources like fish oil and flaxseed support the breed's wiry double coat and provide sustained energy for their busy days.
Small breeds like the Norfolk Terrier are also more susceptible to hypoglycemia, especially as puppies. Feeding smaller, more frequent meals throughout the day helps maintain stable blood sugar levels. Puppies under six months may benefit from three to four meals daily, while adults generally do well on two meals spaced evenly apart.
Because Norfolk Terriers can be prone to weight gain if overfed, portion control is essential. Their compact frames make even a pound or two of excess weight noticeable and potentially harmful to joints and overall health. Measuring food accurately rather than free-feeding is strongly recommended for this breed.