Is e627 vegan?

E627 is the additive code for disodium guanylate, a flavor enhancer commonly used to intensify savory tastes in processed foods. It is a sodium salt of guanylic acid, produced either through the microbial fermentation of plant-based carbohydrates like tapioca or corn, or through direct extraction from animal tissues such as dried fish. Food manufacturers frequently pair it with monosodium glutamate or disodium inosinate in products like instant noodles, flavored potato chips, commercial broths, savory snack mixes, and canned soups.

Disodium guanylate is categorized as possibly vegan because it can originate from either plant or animal materials, and food labels typically do not state the source. The plant-derived version relies on bacterial fermentation of sugars, whereas the animal-derived version is obtained from fish or meat byproducts. Because standard ingredient lists omit these manufacturing details, consumers can only verify that a product containing E627 is vegan if it carries a certified vegan label or if the manufacturer confirms the source directly.