There are currently ten Priority Food Allergens recognized in Canada [Peanuts, Tree nuts (almonds, Brazil nuts, cashews, hazelnuts, macadamia nuts, pecans, pine nuts, pistachios, walnuts), Milk, Eggs, Seafood (fish, crustaceans, shellfish), Soy, Wheat, Sesame seeds, Mustard, Sulphites].
For more information on Food Allergens, please visit:
http://www.inspection.gc.ca/english/fssa/labeti/allerg/allerge.shtml#plus.
Preventing allergic reactions through education and labelling is the responsibility of individual consumers, the food industry and the Canadian Food Inspection Agency (CFIA). Food companies should ensure that they have effective practices in place to minimize potential allergic reactions, and are encouraged to label all fruits and vegetables appropriately to ensure that consumers are aware of any potential priority allergens and/or cross contamination. CFIA is responsible for enforcing Canada’s labelling laws and works with the food industry to ensure appropriate labelling of all foods. Occasionally, CFIA distributes fact sheets concerning allergens and how to prevent allergic reactions to promote the health and safety of Canadians.
For more information about the use of sulphites in fresh fruits and vegetables, please visit:
https://www.canada.ca/en/health-canada/services/food-allergies-intolerances/avoiding-allergens-food/allergen-labelling.html
and
CPMA Fresh Facts for Industry Protective Coatings.pdf