Epsom salt is one of many naturally occurring mineral salts, a compound of magnesium and sulfate in rock-like formations. The name “Epsom salt” is a nod to the town of Epsom, located a stone’s throw away from London in England, where the salt was supposedly discovered about 400 years ago.
While it resembles table salt, it has a very bitter taste and isn’t really meant to be consumed. Most users dissolve it in a warm bath for a soak with the hope of relieving stress or sore muscles.
