Iodised salt

Iodised salt is common table salt (sodium chloride) that has had a small amount of iodine added. Iodine is a naturally occurring mineral, and the salt is typically iodised by adding potassium iodate or potassium iodide during the manufacturing process.

Iodised salt is primarily used to increase iodine intake in the population, helping to prevent iodine deficiency disorders. It functions as a source of essential iodine in a wide range of processed foods, including bread, cereals, processed meats, and savoury snacks, where salt is already a common ingredient for flavour and preservation.

Salt (sodium chloride) is a necessary nutrient, but high intake is linked to increased blood pressure. The UK government advises adults to consume no more than 6g of salt a day. Iodine is also an essential nutrient, crucial for thyroid hormone production. The Food Standards Agency (FSA) and Food Standards Scotland (FSS) oversee food additive authorisations in Great Britain. Iodised salt is authorised for use.