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E621 — Monosodium glutamate (MSG)

The best-known flavour enhancer — pure umami. Historically extracted from wheat gluten; today produced by bacterial fermentation of sugars.

Allergen connection

Another myth-buster: modern MSG is not made from wheat and contains no gluten — it is safe for coeliac disease from a gluten standpoint. Soy sauce and hydrolysed proteins served alongside it are a different story: hydrolysed wheat/soy protein IS matched by Scallergy as wheat/soy.

🌾 Wheat🌱 Soybeans

Where you'll see it

Let the scanner read the E-numbers

Scallergy checks ingredient lists — including allergen-derived additives and hydrolysed proteins — against your personal allergen profile, and tells you honestly when data is missing.

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Scallergy is assistive, not medical advice. Additive sourcing varies by manufacturer — when the source matters for a severe allergy, confirm with the producer and your allergist. Sources: EU Regulation 1169/2011; our data sources.

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