Prakash Black Salt or Indian Black Salt, extensively referred to as kala Namak, is a variety of Indian volcanic stone salt. This special variety of salt has its origin in the Himalayan ranges and is used in Indian dishes as cooking and garnishing salt. Besides its exceptional culinary benefits, it has some excellent health benefits as well. In India, it’s often recommended for individuals with high blood pressure and for those on low-salt diets. Indian black salt is used extensively in Indian food, including chutneys, yogurts, pickles, salads and all kinds of fruits. It’s also sometimes used to flavor cool drinks. Indian black salt is considered a cooling spice in ayurvedic medicine and is recommended for many health issues such as constipation, indigestion, heartburn, bloating, flatulence, goiter, poor eyesight and hysteria.