The Siberian musk deer consumes only plant matter, foraging through grazing; the species eats lichens and moss found under snow during winter, and leaves, shoots, and grass in summer. It obtains food by gnawing on plants, consuming lichens, moss, tree leaves, shrub shoots, grass, leaves, young shoots, and seedlings. The daily food requirement ranges from 400 grams to 0.9 kilograms.