information about salt Salt adds extra taste to our food, but how much do you know about this tasty flavouring? Another name for salt is sodium chloride. Salt has a long history and connection with food. Historically, mentions of salt use go back to 2700 BC. Recognition and knowledge of salt is believed to have been spread around the world by the early nomads and Europeans as they returned from their foreign travels. Initially salt was used as an additive for food to help preserve it, but then it became regularly used as a flavouring. Today we’re recommended to eat a maximum of 9g of salt daily, as too much can cause high blood pressure, strokes and heart disease. It’s hard to monitor when eating some foods though, but it helps to know that 2.5g sodium is equal to 6g of salt. Processed foods account for 75% of the salt in our diets. Many adults regularly exceed the maximum salt intake, eating 9g or more per day. They could be unwittingly putting their health at risk. We lose a small amount of salt as we sweat. Salt is one of the most common minerals found on earth.