Hing also known as asafoetida has been used as an ingredient in traditional ayurvedic medicines and cooking across india nepal pakistan and other south asian countries for thousands of years. Hing is made from the resin of certain trees in the ferula genus. It's also known as asafoetida devil’s dung or perfume of india. It is most commonly found in indian curries pickles chutneys and snacks. Hing contains an ingredient called ferula asafoetida that has been shown to have powerful effects on the digestive system and overall health when consumed on a regular basis in food or drink.