Is Disodium Inosinate Banned? EU vs US Status, Risks & Where It Hides
TL;DR: Disodium Inosinate is allowed in the EU but allowed in the US (flavoring).
Also called IMP. (E631) CAS 4691-65-0.
Other names: E631, sodium inosinate, IMP, inosine-5'-monophosphate disodium salt
Is Disodium Inosinate banned in the EU?
| EU status | Allowed |
|---|---|
| US status | Allowed |
| Risk level | low |
| Where it shows up | Doritos, Funyuns, Pringles, Top Ramen, Campbell's Condensed Soup |
| CAS number | 4691-65-0 |
What is Disodium Inosinate?
Disodium inosinate (E631) is the disodium salt of inosinic acid (IMP), a nucleotide naturally found in meat and fish. It is used as a flavor enhancer that acts synergistically with MSG — small amounts of IMP dramatically amplify the umami-enhancing effect of glutamates (the 'nucleotide-glutamate synergy' effect). It is often used alongside disodium guanylate (E627) and MSG.
Why is Disodium Inosinate used in food?
Boosts umami flavor synergistically with glutamates, allowing manufacturers to use less MSG while achieving equivalent flavor enhancement in snack foods and seasonings.
Is Disodium Inosinate dangerous? Documented risks
Considered safe at food use levels by FDA and EFSA. Disodium inosinate is a purine derivative; individuals with gout or hyperuricemia are advised to limit purine-rich foods, and disodium inosinate may contribute to purine load. It may be derived from animal sources (meat or fish), making it unsuitable for vegans and vegetarians. It often appears alongside MSG on ingredient lists as part of a flavor enhancement system.
Common US products containing Disodium Inosinate
- The Original Ranch Condiment & DressingHidden Valley
- THE ORIGINAL Ranch ORIGINAL RANCHHidden Valley
- Hidden Valley Original Ranch DressingHidden Valley
- Doritos Nacho Cheese Tortilla ChipsDoritos
- Doritos Cool Ranch Tortilla ChipsDoritos
- Lay's Sour Cream & Onion Flavored Potato ChipsLay's
- Banquet Chicken Pot PieBanquet
- Knorr Chicken Rice SidesKnorr
How to avoid Disodium Inosinate: safer alternatives
Mushroom powder and nutritional yeast provide natural umami without nucleotide additives.
Frequently asked questions about Disodium Inosinate
What is disodium inosinate?
A nucleotide flavor enhancer that multiplies the umami effect of MSG; found in snack chips and seasonings.
Is disodium inosinate vegan?
Often derived from meat or fish. Look for vegan-certified products if this is a concern.
Is disodium inosinate bad for gout?
It is a purine derivative and may increase uric acid. People with gout are advised to limit purine-containing additives.
Is disodium inosinate banned anywhere?
No. It is authorized globally. Some countries require it to be labeled as a flavor enhancer.
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Sources
- Re-evaluation of guanosine-5'-disodium monophosphate (E 627), inosine-5'-disodium monophosphate (E 631) as food additives — EFSA
- FDA 21 CFR 172.535 — Disodium inosinate — FDA
Our scores are never influenced by brands. Last updated 6/11/2026.