Is disodium 5-inosinate vegan?

Disodium 5-inosinate is a food additive used primarily as a flavor enhancer to produce a savory umami taste. It is commonly found in savory processed goods such as flavored potato chips, instant noodles, snack seasonings, canned soups, and prepackaged gravies or sauces.

This ingredient is classified as possibly vegan because commercial manufacturers can derive it from either animal or plant sources. When produced from animals, it is typically extracted from meat or fish, particularly sardines. Alternatively, it can be manufactured without animal inputs through the bacterial fermentation of plant sugars derived from tapioca, corn, or sugar beets.

Ingredient labels generally do not specify whether the additive comes from fish, meat, or microbial fermentation. Because both forms are chemically identical, checking for an official vegan certification on the package or contacting the food manufacturer directly is the only way to confirm the origin of the ingredient in a specific product.