E-numbers are codes for food additives approved in the European Union and UK. This database provides detailed information about each additive, including safety information based on scientific research.
Colours (E100-E199)
Natural and synthetic food colourings
Natural yellow colour from turmeric. Used in butter, cheese, mustard.
Generally SafeSynthetic yellow dye. Linked to hyperactivity in children.
Consider AvoidingOrange-yellow synthetic dye. Similar concerns to tartrazine.
Use CautionBrown colour from heated sugar. Found in cola and sauces.
Generally SafeCaramel colour containing 4-MEI. Used in beer and soy sauce.
Use CautionThe "cola caramel" - highest 4-MEI levels but reformulated.
Use CautionNatural orange colour, precursor to vitamin A.
Generally SafeWhite colour BANNED in EU. UK still allows. DNA damage concerns.
Avoid If PossibleNatural mineral-based red/yellow/black colours.
Generally SafeSynthetic yellow dye. Linked to hyperactivity and asthma. Banned in US, Australia.
Consider AvoidingNatural red dye from crushed insects. Allergy risk. Not vegan.
Use CautionSynthetic red dye linked to hyperactivity. Banned in US, Sweden, Norway.
Consider AvoidingSynthetic red dye requiring UK warning label. Banned in US.
Consider AvoidingSynthetic red dye (Red 40) linked to hyperactivity in children.
Consider AvoidingSynthetic blue dye in sweets. Requires hyperactivity warning.
Caution for ChildrenSynthetic blue dye. Allergic reactions possible.
Use CautionSynthetic blue dye. Generally well-tolerated.
Generally SafeNatural-derived green colour from plants.
Generally SafeBlack charcoal colour. Can interfere with medications.
Caution with MedsNatural orange-red colour from achiote seeds. Used in cheese.
Generally SafePreservatives (E200-E299)
Extend shelf life by preventing microbial growth
Common preservative in soft drinks and pickles.
Use CautionPreservative in dried fruit and wine. May trigger asthma.
Use CautionPreservative in processed meats. Linked to health concerns.
Consider AvoidingCuring salt in dry-cured meats. Converts to nitrite in body.
Use CautionNatural preservative from rowan berries. One of the safest.
Completely SafePreservative in wine, cheese and baked goods. Very safe.
Generally SafeAntioxidants (E300-E399)
Prevent oxidation and rancidity
Vitamin C. Used as antioxidant in many foods.
Safe (Vitamin)Vitamin C sodium salt. Less acidic form in processed meats.
Safe (Vitamin)Vitamin E. Natural antioxidant in oils and fats.
Safe (Vitamin)Emulsifier from soy or sunflower. Found in chocolate.
Generally SafeSynthetic antioxidant banned in UK/EU. May be in imported foods.
Avoid (Banned in EU)Synthetic antioxidant classified as possible carcinogen by WHO.
AvoidSynthetic antioxidant with cancer concerns. Banned in Japan.
Use CautionNatural preservative from citrus fruits. One of the safest additives.
Completely SafeAcidifier in cola drinks. Linked to bone and kidney concerns.
Use CautionEmulsifiers & Thickeners (E400-E499)
Stabilise texture and improve consistency
Sugar alcohol in sugar-free products. Laxative effect in large amounts.
Digestive CautionEmulsifier in chocolate. Safe but indicates lower quality.
Generally SafeSeaweed extract. Controversial due to gut inflammation concerns.
Use CautionNatural thickener from guar beans. Gluten-free, may aid digestion.
Generally SafeNatural thickener from fermentation. Gluten-free, vegan.
Generally SafeNatural humectant in cakes and icing. Completely safe.
Completely SafeNatural gelling agent from fruits. May lower cholesterol.
Completely SafePhosphate salts in processed meats. Kidney concerns at high intake.
Use CautionEmulsifier in bread and cakes. Halal/vegan status varies by source.
Generally SafeRaising Agents (E500-E599)
Help baked goods rise
Flavour Enhancers (E600-E699)
Boost existing flavours in food
Sweeteners (E900-E999)
Low or zero-calorie sugar alternatives
Artificial sweetener in diet drinks. WHO: "possibly carcinogenic".
Use CautionZero-calorie sweetener with limited testing. Use in moderation.
Use CautionSweetener banned in US since 1969 due to cancer concerns.
AvoidOldest artificial sweetener. 1970s cancer scare was debunked.
Use CautionMade from sugar. Don't use for cooking – breaks down when heated.
Use CautionNatural plant-based sweetener. The safest sweetener choice.
Completely SafeCheck E-Numbers Instantly
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More E-numbers coming soon. We're building the most comprehensive UK E-numbers database with detailed safety information for every additive. Check back regularly for updates.