What is E624?

Monoammonium glutamate is a compound with formula NH4C5H8NO4. It is an ammonium acid salt of glutamic acid. E624 sits in the E600–E699 series, which in the EU classification mainly covers flavour enhancers.

What is E624 used for?

E624 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 E624 safe?

E624 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 E624 appears on labels

On food packaging you'll find E624 either as the number “E624” or by the name “Monoammonium glutamate” 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 E624 vegan?

Yes, E624 is suitable for vegans.