What is E620?

Glutamic acid, molecular formula C5H9NO4, is an α-amino acid that is used by almost all organisms for the biosynthesis of proteins. It is a non-essential nutrient for humans, meaning that the human body can synthesize it intrinsically and does not need to procure it through food. E620 sits in the E600–E699 series, which in the EU classification mainly covers flavour enhancers.

What is E620 used for?

E620 belongs to the flavour enhancers group. Flavour enhancers such as monosodium glutamate (E621) bring out taste. They are approved, though some prefer to limit them.

Is E620 safe?

E620 is rated “moderate”. It is approved for use in food, but some people prefer to limit it. “Moderate” means it is approved, but is debated or something some people prefer to limit.

How E620 appears on labels

On food packaging you'll find E620 either as the number “E620” or by the name “Glutamic acid” in the ingredient list, often after its function. Ingredients are listed in descending order by weight, so an additive near the end is present only in small amounts.

Is E620 vegan?

Yes, E620 is suitable for vegans.