What is E634?
E634 is Calcium 5'-Ribonucleotides — a blend of inosinate and guanylate that can be animal-derived, used as a flavour enhancer to help boost the existing savoury flavour of foods.
What is E634 (Calcium 5'-Ribonucleotides)?
E634 is the E-number for calcium 5'-ribonucleotides, one of the flavour enhancers group of food additives (E600–E699). Additives in this group boost the existing savoury flavour of foods. A blend of inosinate and guanylate that can be animal-derived. Like every E-number, E634 has been evaluated and authorised for use in food in the European Union — the 'E' literally stands for Europe, and a number is only granted after a safety assessment. That authorisation doesn't mean every additive suits every diet or that all concerns are settled, which is why we break down the safety, vegan, vegetarian and halal status of E634 in detail below.
Where is E634 found?
E634 is typically used in crisps, instant noodles, soups, stock cubes, savoury snacks and ready meals. You'll find it listed in the ingredients either by its E-number (E634) or by its full name, calcium 5'-ribonucleotides. Common foods that may contain E634 include:
- Crisps
- Instant noodles
- Soups
- Stock cubes
- Savoury snacks and ready meals
Full guide: foods containing E634 and how to spot it on labels →
Is E634 safe?
E634 is considered safe. It is authorised across the EU, UK and US, and safety evaluations by the European Food Safety Authority (EFSA) have not identified health concerns at the levels used in food. For most people there is no reason to avoid E634.
EFSA status: Authorised in the EU — no safety concern at current levels of use
Source: European Food Safety Authority
Is E634 vegan?
E634 is uncertain for vegans — it is a blend of inosinate and guanylate that can be animal-derived, and the label doesn't reveal the source. Look for a vegan certification or ask the manufacturer.
Full vegan status guide for E634 →Is E634 halal?
E634 is treated as haram unless certified. A blend of inosinate and guanylate that can be animal-derived, and without halal certification the source cannot be verified as permissible.
Full halal status guide for E634 →Frequently Asked Questions
What is E634 in food?
E634 is Calcium 5'-Ribonucleotides — a blend of inosinate and guanylate that can be animal-derived, used as a flavour enhancer to help boost the existing savoury flavour of foods.
Is E634 safe to eat?
Yes. E634 is authorised in the EU, UK and US, and EFSA evaluations found no health concern at normal food levels.
Is E634 vegan?
E634 is uncertain for vegans — it is a blend of inosinate and guanylate that can be animal-derived, and the label doesn't reveal the source. Look for a vegan certification or ask the manufacturer.
Is E634 halal?
E634 is treated as haram unless certified. A blend of inosinate and guanylate that can be animal-derived, and without halal certification the source cannot be verified as permissible.
Also check: is this ingredient safe for cats? · safe for dogs? · check the calorie content of foods containing this
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Additive data sourced from Open Food Facts (ODbL licence) and the European Food Safety Authority (EFSA).