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INS 635 · Flavour enhancer

INS 635 is the code for disodium 5'-ribonucleotides

A ready-made blend of INS 627 and INS 631, listed as one code. Same job, same pairing with MSG.

Get early access How Zabel scores additives
What it does
Boosts savoury flavour A flavour enhancer
Vegetarian?
Depends on the maker Source not stated on the label
In the Zabel score
6 of the 20 additive points Method 1.0.0
In our catalogue
85 packs List it in their ingredients
Vegetarian or not

Is INS 635 vegetarian?

It depends on the maker. INS 635 can be made from plant or animal sources and the label does not say which, so the code tells you nothing either way. The green or brown mark on the pack is the declaration to go by.

Counted from the 85 packs in Zabel's catalogue that list INS 635, 74 of which have a food category so far. Counted 4 Nov 2026.

What the evidence says

What does the evidence say about INS 635?

We grade an additive by the evidence about it, not by whether it sounds like a chemical, and we make no claim about whether a pack complies with FSSAI rules.

Carries the properties of both its components: no ADI concern at food levels, a purine load relevant to gout, and an origin that may be microbial, fish or meat depending on the manufacturer.

Does Zabel mark INS 635 down?

Yes, by 6 points. The additives part of the score starts at 20, and each code takes off a fixed amount set by the strength of the evidence about it, not by the fact that it is an additive (method 1.0.0). Read the method.

Usually found with

Questions people search

What is INS 635?

INS 635 is the code for disodium 5'-ribonucleotides, a flavour enhancer. A ready-made blend of INS 627 and INS 631, listed as one code. Same job, same pairing with MSG.

Is INS 635 vegetarian?

It depends on the maker. INS 635 can be made from plant or animal sources and the label does not say which, so the code tells you nothing either way. The green or brown mark on the pack is the declaration to go by.

What does the evidence say about INS 635?

Carries the properties of both its components: no ADI concern at food levels, a purine load relevant to gout, and an origin that may be microbial, fish or meat depending on the manufacturer.

Does Zabel mark INS 635 down?

Yes, by 6 points. The additives part of the score starts at 20, and each code takes off a fixed amount set by the strength of the evidence about it, not by the fact that it is an additive (method 1.0.0).

Sources

  1. 01 Evaluations of the Joint FAO/WHO Expert Committee on Food Additives (JECFA) WHO / FAO, 2024
  2. 02 Zabel catalogue - pack counts, food categories and the codes printed alongside 4 Nov 2026

Entry updated 19 Sep 2026 · Not reviewed by a dietitian yet · Report an error on this page

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