Allergen Guides — E-Numbers and the 14 Declared Allergens

Which E-numbers matter for your allergy? Fewer than you'd fear — but a handful genuinely can involve milk, egg, soya, fish or sulphites.

The additives below are edge cases worth knowing rather than everyday risks. Checking for your pet? See if foods with this ingredient are safe for cats or safe for dogs.

Allergen-relevant additives

When you need a confirmed answer, not a possibility

Everything above tells you which E-numbers can involve a given allergen — genuinely useful for checking a label before you buy, but it can't tell you whether a specific reaction you've had actually traces back to one of them. If you're trying to pin down a recurring reaction rather than just avoid known trigger ingredients, an allergy test panel checks your actual response directly, across a broad range of common allergens in one appointment rather than eliminating foods one at a time.

Other allergen guides

Data: Open Food Facts (ODbL) · EFSA. General information only — not medical or dietary advice.