Aiva Black Salt also known as Kala Namak makes a great eggy substitute in flavor. Black salt contains a sufficient amount of potassium that is crucial in regulating muscle functioning and also helps absorb other minerals well. Black salt contains minerals and iron that make it packed with nutrition. It is used as a condiment or added to chaat masala, chutneys, all kinds of fruits, raitas, and many other savory Indian snacks. Black salt is also known as Kala namak looks like pinkish grey rather than Black. Country of Origin: India