Sodium Glutamate

Other names: MSG, monosodium glutamate, E621

Harm score: 2 (Derivatives of natural substances)

Monosodium glutamate, commonly known as MSG or E621, is a colorless crystalline powder that has a sweet to salty taste. This substance is synthesized from corn and beet sugar and is one of the most widely used flavors in the world. It is one of the so-called flavour enhancers, or substances that amplify the flavouring effects of other ingredients in food. Monosodium glutamate is also present in large quantities in the human body and its main function is to transmit nerve signals.

MSG, monosodium glutamate or E621, can be found in a huge variety of products. It is most commonly added to packaged foods such as convenience foods, canned foods, instant soups, sauces, meat products, sausages, canned vegetables, cheese and many others. In addition, it is also widely used in Asian cuisine where it is added to various sauces, soups or noodles. However, although monosodium glutamate is approved by the European Union and the International Codex Alimentarius as safe for consumption, there are frequent discussions about its possible negative health effects. Some people may have a sensitive reaction to monosodium glutamate, causing, for example, headaches, asthma attacks, irritation of the nose or throat and more. Therefore, it is up to manufacturers to indicate the presence of monosodium glutamate on product packaging.