Last reviewed May 2026 · 1 min read
Is Disodium Ribonucleotides vegan?
Also known as: I+G, Sodium ribonucleotides, E635
E-number: E635
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Source can be plant or animal.
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It depends — It is a mixture of disodium guanylate (E627) and disodium inosinate (E631).
01 · The basics
What is Disodium Ribonucleotides?
A high-potency flavor enhancer that works synergistically with MSG to create an intense savory (umami) profile.
02 · The source
Where it comes from
It is a mixture of disodium guanylate (E627) and disodium inosinate (E631). E631 is frequently derived from fish or meat, making E635 a major gray area for vegans.
03 · Alternatives
Best vegan alternatives
Yeast extract
Check Price on AmazonMSG (if vegan)
Check Price on AmazonMushroom powder
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Frequently asked
FAQ
Is E635 (I+G) vegan friendly?
Only if the individual components (specifically E631) are plant-derived. If the package has a fish allergy warning, E635 is almost certainly non-vegan.
Why is E635 used in 'no-added MSG' products?
It provides a similar flavor boost to MSG but is less recognized by consumers, making it a popular choice for 'cleaner' looking labels.
Commonly found in
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