What is E634?

Calcium 5'-ribonucleotides is a mixture used as a flavor enhancer food additive. It listed as E number reference E634. E634 sits in the E600–E699 series, which in the EU classification mainly covers flavour enhancers.

What is E634 used for?

E634 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 E634 safe?

E634 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 E634 appears on labels

On food packaging you'll find E634 either as the number “E634” or by the name “Calcium 5-ribonucleotides” 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 E634 vegan?

No, E634 is animal-derived and not suitable for vegans.