Ingredient Data
Vegan Status
Not Vegan
E-Number
E631
Also Known As
IMP; Inosinic acid disodium salt
Source
Traditionally derived from fish (sardines, anchovies) or meat. Some fermentation-derived versions exist but are not standard in commercial food production.
Commonly Found In
Instant noodles, crisps/chips, flavored snack foods, bouillon cubes, fast food seasonings. Almost always used together with E627 and MSG.
Vegan Alternative
There is no direct flavor substitute. Avoid products listing E631 unless the manufacturer confirms a non-animal source.