Sodium

Sodium is a mineral that is essential for life, playing a key role in nerve and muscle function, and maintaining fluid balance. It is found naturally in many foods, particularly vegetables. In food manufacturing, it is often added in the form of sodium chloride (table salt) or other sodium compounds.

Sodium compounds are widely used in food manufacturing for their flavour-enhancing and preservative properties. Sodium chloride, in particular, is a key ingredient for taste and also helps to inhibit microbial growth, extending shelf life. It is commonly found in processed meats, baked goods, and savoury snacks.

Sodium is an essential nutrient, but high intakes are linked to increased blood pressure, a risk factor for cardiovascular disease. The NHS advises adults to eat no more than 6g of salt (equivalent to 2.4g of sodium) per day. Sodium chloride is authorised for use as a food additive in the UK.