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Is E635 halal or haram?

Disodium ribonucleotides · Flavour enhancer

SuspectLast reviewed: April 2026

E635 (Disodium ribonucleotides) is generally classified as suspect (mashbooh). Animal source possible (often combined with E631). Verify.

What is E635?

E635, listed on labels as Disodium ribonucleotides, is a flavour enhancer that boosts the savoury (umami) taste. You'll most often find it in packaged and processed foods.

Is E635 halal? The verdict

E635 is mashbooh (doubtful). Animal source possible (often combined with E631). Verify. Manufacturers aren't required to print the source on the label, so unless the pack states a plant/vegetable source or carries a recognised halal certification (HMC, JAKIM, MUI, IFANCA), the safest choice is to avoid it.

How to check E635 on a label

Scan the ingredient list for E635 and its other names. If it's present and the source isn't stated, treat the product as doubtful. A barcode or photo scan with Halal Food AI flags E635 automatically and tells you whether the product declares a halal source.

Other names & label terms to scan for

  • Disodium ribonucleotides
  • Disodium 5'-ribonucleotides
  • Flavour enhancer 635
  • INS 635
  • E635

Bottom line

E635 is doubtful (mashbooh) — avoid unless the source is stated as halal or the product is halal-certified.

Stop guessing in the aisle

Halal Food AI flags E635 and every other suspect or not-halal additive automatically — just scan the barcode or snap the ingredient list. Plain-language verdicts, 25+ languages.