Is Disodium Guanylate Safe During Pregnancy?
The facts: Disodium Guanylate is not banned worldwide, but some health agencies have flagged concerns. We can't tell you whether it's safe for your pregnancy — that's a conversation for your OB-GYN or midwife. What we can do is show you the regulatory facts and flag Disodium Guanylate on any product's label so you can decide with your provider. Commonly found in: Doritos Nacho Cheese, Lay's Kettle Cooked, Pringles.
TL;DR: Disodium Guanylate is allowed in the EU and allowed in the US. Here's what to know if you're pregnant.
Disodium Guanylate: regulatory status at a glance
| EU status | Allowed |
|---|---|
| US status | Allowed |
| Risk level (regulatory) | low |
| Where it shows up | Doritos Nacho Cheese, Lay's Kettle Cooked, Pringles, Nissin Cup Noodles, Maruchan Ramen |
What is Disodium Guanylate?
Disodium guanylate (E627) is the disodium salt of guanylic acid (GMP), a nucleotide naturally present in dried mushrooms, seaweed, and certain fish. It is used as a flavor enhancer with even greater synergy with glutamates than disodium inosinate. The combination of GMP and IMP (5'-ribonucleotides, E635) is one of the most potent umami enhancement systems available.
Why is Disodium Guanylate used in food?
Dramatically potentiates umami flavors in processed foods, allowing reduced MSG use; used in combination with MSG and disodium inosinate in snack seasonings.
What regulators have flagged about Disodium Guanylate
Considered safe at food use levels. As a purine nucleotide, it raises the same gout/hyperuricemia concerns as disodium inosinate. Commercial disodium guanylate is often derived from fish (sardines) or yeast, making it non-vegan and non-vegetarian in most commercial applications. People with gout should be aware of cumulative purine intake from these additives.
For educational use only. This page summarizes the regulatory status of Disodium Guanylate with citations to the primary sources below. It is not medical advice and is not pregnancy-specific medical guidance. Consult your OB-GYN or midwife for decisions about your pregnancy.
Pregnancy-conscious swaps free from Disodium Guanylate →
Audited products that don't contain Disodium Guanylate.
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Disodium Guanylate and pregnancy: common questions
Is Disodium Guanylate banned anywhere?
Disodium Guanylate is not currently banned worldwide, though some agencies have flagged concerns. See the sources below.
Should I avoid Disodium Guanylate during pregnancy?
That's a decision for you and your OB-GYN or midwife — we don't give medical advice. What we can tell you is the regulatory status above. Many people choose to limit additives during pregnancy out of caution; bring this page and its sources to your next appointment.
What foods contain Disodium Guanylate?
Commonly found in Doritos Nacho Cheese, Lay's Kettle Cooked, Pringles, Nissin Cup Noodles, Maruchan Ramen. Scan any product's barcode to check its label for Disodium Guanylate.
What can I use instead of Disodium Guanylate?
Naturally occurring in dried shiitake mushrooms and nori seaweed, which provide the same GMP without additive labeling. See the pregnancy-conscious swaps below.
Scan any product's barcode and instantly see if it contains Disodium Guanylate or other ingredients restricted overseas.
Scan a product free →Other ingredients to check during pregnancy
Sources
- EFSA re-evaluation of guanosine-5'-disodium monophosphate (E 627) — EFSA
- FDA Flavor Enhancers — 21 CFR 172.530 — FDA
Our scores are never influenced by brands. Last updated 6/11/2026.