Is Disodium Guanylate Safe?
Disodium Guanylate is the additive E627 — a savoury flavour booster usually made from yeast or tapioca — but it can be derived from fish, so strict vegans should check.
Is Disodium Guanylate safe to eat?
E627 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 E627.
EFSA status: Authorised in the EU — no safety concern at current levels of use
Source: European Food Safety Authority
What is Disodium Guanylate?
E627 is the E-number for disodium guanylate, one of the flavour enhancers group of food additives (E600–E699). Additives in this group boost the existing savoury flavour of foods. Usually produced from yeast or tapioca starch, but can be derived from fish or meat. Disodium guanylate is almost always paired with MSG (E621) because the two amplify each other's savoury umami effect dramatically. Like every E-number, E627 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 E627 in detail below.
What foods contain Disodium Guanylate?
E627 (Disodium Guanylate) is typically found in:
- Crisps
- Instant noodles
- Stock cubes
- Savoury snacks
- Ready meals
Frequently Asked Questions
Is Disodium Guanylate bad for you?
Yes. E627 is authorised in the EU, UK and US, and EFSA evaluations found no health concern at normal food levels.
Is Disodium Guanylate vegan?
E627 is uncertain for vegans — it is usually produced from yeast or tapioca starch, but can be derived from fish or meat, and the label doesn't reveal the source. Look for a vegan certification or ask the manufacturer.
Is Disodium Guanylate halal?
E627 is mashbooh (doubtful) — usually produced from yeast or tapioca starch, but can be derived from fish or meat. Verify the source with the manufacturer or choose halal-certified products.
Full guide to E627 (Disodium Guanylate) →
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Additive data sourced from Open Food Facts (ODbL licence) and the European Food Safety Authority (EFSA).