E631

Disodium inosinate (IMP) is a flavor enhancer. It is typically made by fermenting sugars with bacteria. It is often produced in combination with disodium guanylate (GMP).

Disodium inosinate is used to boost savory, umami flavors in foods. It is often found in processed foods like instant noodles, snack foods, and sauces. It works best when combined with other flavor enhancers like disodium guanylate.

Disodium inosinate is generally recognized as safe (GRAS) by the FDA for use in food. International bodies like JECFA have evaluated it. Some people report sensitivity to high levels of MSG and related compounds, though scientific evidence for widespread adverse effects at typical dietary levels is mixed. It is not associated with significant health risks when consumed in amounts typically found in food.