Is E627 (Disodium guanylate) Halal?
Doubtful — depends on source
E627 (Disodium guanylate) is a flavour enhancer that can be derived from yeast, fish or meat — so it is treated as doubtful (mushbooh) unless the source is known.
What is E627?
Disodium guanylate is a flavour enhancer, usually used together with MSG (E621) and disodium inosinate (E631) to boost savoury taste. It can be produced from yeast, or derived from fish or meat.
Obtained from yeast extract, by fermentation, or by processing fish/meat tissue. The source is almost never stated on the label.
Why is it doubtful (mushbooh)?
E627 is doubtful because its source varies. If it is yeast-derived or microbial it is permissible; if from non-halal meat it is not; fish-derived versions also matter to anyone avoiding fish. Because the source is rarely stated — and it very commonly appears alongside E621 and E631 in snacks and instant foods — the honest default is to verify.
Commonly found in
It may be found in — this does not mean every product below contains it.
- Savoury snacks and crisps
- Instant noodles and seasonings
- Stock cubes and ready meals
- Processed savoury foods
How it appears on labels
Disodium guanylateE627Flavour enhancer (E627)INS number: 627
How to verify a product in Singapore
- Ingredient-level guidance is not halal certification — check the complete product, not just this ingredient.
- Look for recognised halal certification, and check the finished product on the official MUIS HalalSG register.
- When the source or processing aids are unclear, contact the manufacturer.
In Singapore, verify the finished product on the MUIS HalalSG register or contact the manufacturer, since the source of E627 is usually not printed.
Check MUIS HalalSGSources: FAO/WHO, EFSA, MUIS · Last reviewed: July 2026 · This guidance is not certification.
Frequently asked questions
Is E627 (disodium guanylate) halal?
It is doubtful (mushbooh). It can be from yeast, fish or meat, and the source is usually unstated — verify with certification or the manufacturer.
Is E627 from pork?
It can be derived from meat (possibly including pork sources), but it may also be from yeast or fish. Confirm via certification or the manufacturer.
What names should I look for?
'Disodium guanylate', 'E627' — often listed with E621 and E631.
Related ingredients
Sources & methodology
- General Standard for Food Additives (GSFA) Online Database — Codex Alimentarius (FAO/WHO) · INS 627 and approved uses
- Guanylate flavour enhancers (E 626-629) — European Food Safety Authority (EFSA) · Possible yeast/fish/meat sourcing
- Halal Certification — HalalSG — Majlis Ugama Islam Singapura (MUIS) · Singapore halal verification process
Humble Halal methodology: we classify additives by their common origin, not by any specific product. A generally-halal ingredient does not make a finished product halal-certified. This page is general guidance, not certification or religious/legal advice — always verify the complete product. Last reviewed July 2026.