Understanding Allergens and Food Labels

How to read allergen statements and ingredient labels — Canada's priority allergens, “may contain” warnings, and shopping with confidence.

Why food labels matter

For anyone managing allergies or dietary needs, the label is the most important part of the package. Learning to read allergen statements and ingredient lists quickly makes shopping safer and less stressful.

Canada's priority allergens

• Health Canada requires priority allergens to be declared, including: peanuts and tree nuts
• milk and eggs
• wheat and other gluten sources
• soy
• fish, crustaceans and shellfish
• sesame, mustard and added sulphites

How allergens appear on a label

Priority allergens must be clearly declared, either within the ingredient list or in a separate “Contains” statement after it. Precautionary “may contain” statements flag possible cross-contamination from shared equipment. Both are worth reading — the “Contains” line for what's in the food, the “may contain” line for cross-contact risk.

How to read a label quickly

• Scan the “Contains” statement first for priority allergens
• Read the full ingredient list, not just the front of the pack
• Check for “may contain” cross-contamination notes
• Re-check familiar products — recipes and suppliers change
• When unsure, contact the manufacturer

Tips

• Ingredients are listed by weight, the largest first
• “Free from” claims still warrant a full label check
• Allergen rules vary by country — read local labels
• Keep a list of safe products for repeat shopping

Reading labels, made simple

A minute with the label — the “Contains” line, the ingredient list and any “may contain” note — is the surest way to shop safely. Unico lists ingredient and allergen information on its packaging; always check the specific package. (General information — follow medical guidance for personal allergy needs.)