Hing is a Asafoetida or Asafetida it is also known as: Hin, Heeng, Hinga, Hingu. It is a resin like gum which is extracted from dried sap of the stem and roots of Ferula Assa-Foetida plant. It is a very useful spice for those who don't eat onion or garlic, as it adds a similar depth and savouriness to food. Hing is widely used in Indian cooking as a spice. It is used in food to neutralise the acidic effects and it helps in controlling the digestive system. Product of India.