Nyctereutes procyonoides is an opportunistic omnivore. On land, it hunts insects, small rodents, amphibians, birds, and eggs. It also fishes in lakes, rivers, and streams using its paws to scoop prey out of the water. It also dives underwater in search for its meal. In addition, raccoon dogs eat mollusks, snakes, and lizards; on the seashore, crabs, sea urchins, and sea carrion are also consumed.
Raccoon dogs also eat plant material— including stems, roots, leaves, bulbs, fruits, nuts berries, and seeds— according to the season and location. During the fall, they eat mainly vegetables, including a variety of fruits, wild berries, and seeds such as oats. In the winter, when food sources are limited, they may survive on human garbage and carrion. In Japan, raccoon dogs rely heavily on garbage, insects, fish, crabs, and plants such as buckthorn (Rhamnus), hornbeam (Carpinus), and a shrub (Aucuba japonica). In Finland, during the summers, they rely on small mammals (Mus musculus), plants, and amphibians; during the winter, they rely on carrion, small mammals, and plants.
Animal Foods: birds; mammals; amphibians; reptiles; fish; eggs; carrion ; insects; mollusks; aquatic crustaceans; echinoderms
Plant Foods: leaves; roots and tubers; wood, bark, or stems; seeds, grains, and nuts; fruit
Primary Diet: omnivore