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Food Allergies

How to Read Food Labels for Allergens - A Simple Guide

Published: 2026-04-05

EU Allergen Labeling Rules

In the EU, 14 major allergens must be highlighted in the ingredients list - typically in bold, italics, or UPPERCASE. These are:

  1. Gluten (wheat, rye, barley, oats)
  2. Crustaceans
  3. Eggs
  4. Fish
  5. Peanuts
  6. Soybeans
  7. Milk (including lactose)
  8. Tree nuts (almonds, hazelnuts, walnuts, cashews, pecans, pistachios, macadamias)
  9. Celery
  10. Mustard
  11. Sesame
  12. Sulphur dioxide (sulphites > 10mg/kg)
  13. Lupin
  14. Molluscs

Where to Find Allergen Information

Look in three places on the package:

  1. Ingredients list - allergens highlighted in bold/caps
  2. "Contains" statement - summary below ingredients (e.g., "Contains: milk, wheat, soy")
  3. Precautionary warnings - "May contain traces of..." or "Produced in a facility that processes..."

What "May Contain" Really Means

"May contain traces of nuts" does NOT mean nuts are an ingredient. It means:

  • The product is made in a facility that also processes nuts
  • Cross-contamination is possible but not certain
  • The manufacturer cannot guarantee zero contamination

For food allergies (anaphylaxis risk): Take these warnings seriously - even traces can be dangerous.

For intolerances (e.g., lactose): "May contain traces of milk" is usually safe - the actual amount is typically negligible.

Common Label Traps

Hidden allergen names

AllergenHidden names to watch for
MilkCasein, whey, lactalbumin, ghee
WheatSemolina, durum, spelt, kamut, couscous
EggsAlbumin, lysozyme, meringue
SoyEdamame, miso, tempeh, textured vegetable protein
PeanutsGroundnuts, arachis oil, monkey nuts

Formula changes

Manufacturers can change recipes without warning. A product that was safe last month may not be safe today. Check the label every single time you buy a product.

"Natural flavors"

"Natural flavors" or "spices" can sometimes contain allergens. If the label is vague, contact the manufacturer.

Quick Label-Reading Checklist

  1. ✅ Check the bold/highlighted ingredients first
  2. ✅ Read the "Contains" statement
  3. ✅ Check for "May contain" warnings
  4. ✅ Look for certification marks (gluten-free, vegan, etc.)
  5. Scan the barcode with FoodScan.ai for instant allergen breakdown
  6. ⚠️ Check date - did the label/formula change recently?
  7. ❌ Never assume - always read, even for familiar products
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How to Read Food Labels for Allergens - A Simple Guide | FoodScan.ai