Only a small amount of food need be present during the day for a snack. A sample diet for an adult hedgehog for one day is: 2-3 Tbsp dry (or mixture of dry and canned) reduced-calorie cat food; 1-2 Tbsp mixed fresh vegetables and 3-5 insects 3-4 times a week.
Invertebrates are important to the diet, especially for breeding sows, and may include mealworms, worms, insects, and crickets. Commercial complete hedgehog diets are being developed and should be used if available.
To introduce individuals to new diets, mix new foods gradually into the old. It helps to have all chunks or pieces of the new and old diets the same size and relative consistency.