• Pregnant arctic foxes are able to consume and absorb large amounts of food according to autumn norms without harm to themselves or their offspring. This is related to their polytocity.
• Raw fish contains the enzyme thiaminase, which breaks down vitamin B1. Long-term consumption of such fish is undesirable, as it may lead to vitamin deficiency in young animals.
• The arctic fox eats animals caught in traps, including other arctic foxes. On the coast, it often accompanies polar bears and obtains some of the meat from killed seals.

The Arctic fox is a predator that primarily hunts lemmings; during summer, the species also consumes birds, eggs, and insects, while in winter it frequently eats carrion left by polar bears. Its diet includes lemmings, voles, birds, eggs, carrion, berries, rodents, and field mice. The strategy for obtaining food involves active hunting, ambushes, searching for food, and scavenging. Daily food requirements range from 150 grams to 400 grams, and young Arctic foxes consume milk. The species preys on lemmings, grey voles, white ptarmigans, geese, swan geese, divers, smews, scoters, eiders, hares, and waterfowl. In some cultures, the animal is eaten, but it is not considered halal or kosher.