Kalmegh (Andrographis paniculata) is a leafy herb known for its intensely bitter taste and is native to South and Southeast Asia. The plant contains natural compounds such as andrographolide, neoandrographolide, and deoxyandrographolide. Kalmegh is low in calories and provides small amounts of dietary fiber and plant-based antioxidants. It is often used in botanical preparations and as a bittering agent in various culinary applications.