Black salt (Kala Namak). Black salt is a natural unrefined salt that contains hydrogen sulfide and is rich in iodine, potassium, sulfur, iron and other trace elements. Its main value is the ability to regulate digestion and retain water in the body not as strongly as ordinary salt. Black salt is also used as a diuretic, laxative, strengthens bowel function and improves appetite. You can add black salt to soups, salads, sauces, all kinds of fruits, raita and other dishes. The salt is pinkish-brown in color and has a sulfur (hard-boiled egg) aroma. The composition includes 84 minerals and trace elements that have a beneficial effect on the human body. Black salt is much healthier than table salt. It recycles easily. Use like regular salt.