What is E629?

Calcium guanylate is a compound with formula Ca(C10H12O4N5PO4). It is the calcium salt of guanylic acid. E629 sits in the E600–E699 series, which in the EU classification mainly covers flavour enhancers.

What is E629 used for?

E629 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 E629 safe?

E629 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 E629 appears on labels

On food packaging you'll find E629 either as the number “E629” or by the name “Calcium guanylate” 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 E629 vegan?

No, E629 is animal-derived and not suitable for vegans.