Flavour enhancers are used to bring out the flavour in a wide range of foods without adding a flavour of their own.

For example, monosodium glutamate (E621), known as MSG, is added to processed foods, especially soups, sauces and sausages.

Flavour enhancers are also used in a wide range of other foods including savoury snacks, prepared meals and condiments.

Salt, although not classed as a food additive, is the most widely used flavour enhancer.