Is Disodium Inosinate (E631) vegan?
Depends· E631
E631 was historically extracted from fish or meat. Modern E631 is usually microbial. Source is rarely disclosed.
What it is
A flavor enhancer that works synergistically with MSG.
Why depends
Can be from sardines, meat or — most often today — bacterial fermentation of tapioca starch. Vegans typically default-avoid unless certified.
Where you'll find it
- Chips and snack seasonings
- Instant noodles
- Bouillon cubes
Vegan alternatives
- Certified vegan snack brands
- Products with plain MSG or yeast extract
FAQ
- How can I know the source?
- Email the manufacturer; many Asian-brand instant noodles disclose 'plant-derived' on request.
Sources
Last reviewed June 4, 2026