Gundruk is a fermented leafy green vegetable originated in Nepal. Alongside Nepal, it is also popular in Gorkhali or Nepalese diaspora households in India, Bhutan, Myanmar and other parts of the world. The annual production of gundruk in Nepal is estimated at 2,000 tons and most of the production is carried out at the household level.
Gundruk is obtained from the fermentation of leafy vegetables (saag; Nepali: साग). It is served as a side dish with the main meal and is also used as an appetizer. Gundruk is an important source of minerals, particularly during the off-season when the diet consists of mostly starchy tubers and maize, which tend to be low in minerals.