Though there are different types of black salt, Himalayan black salt is the most common.

It’s a rock salt that comes from the salt mines of Pakistan, Bangladesh, India, Nepal, and other locations in the Himalayas.

The use of black salt was first documented in Ayurvedic medicine, a traditional and holistic approach to health that originated in India.
Ayurvedic healers claim that Himalayan black salt has therapeutic qualities. However, it’s debatable whether these claims are rooted in solid research.