It is estimated that as many as 1.2 million Canadians may be affected by allergies. Some studies indicate that these numbers are increasing, especially among children. Peanuts, tree nuts, sesame seeds, soy, seafood, wheat, eggs, milk, mustard and sulphites are the food allergens most commonly associated with severe allergic reactions in Canada.
When someone ingests even a tiny amount of an allergen, the symptoms of a reaction may develop quickly and become very serious. The most dangerous symptoms include breathing difficulties or a drop in blood pressure with shock, which may result in loss of consciousness, anaphylaxis and even death.
Because of this, many elementary schools are now restricting certain foods from students' lunches. Parents are encouraged to follow school policies, even if their child isn't allergic. To find out which foods, if any, are restricted in their children's schools, parents should contact the school directly.
To date, there is no cure for food allergies. Avoiding an allergen is the only effective way to prevent allergic reactions. This is why it is important that allergic children not be exposed to allergens that regularly cause extreme and sometimes fatal reactions.
To help parents and Canadians with food allergies identify foods that they should avoid, Health Canada has recently updated the rules governing the labelling of priority allergens. Details are available on Health Canada's website.
Health Canada has also developed information on food allergies as well as a number of food allergy factsheets, which provide information on the most common food allergens. An It's Your Health article also provides additional information on severe allergic reactions.
Allergy associations, such as Anaphylaxis Canada, the Allergy Asthma Information Association, or the Association Quebecoise des Allergies Alimentaires, also provide further information, including tips and strategies for educators, schools and other organizations for creating allergy safe communities.
For more information on school lunch allergen safety, please visit:
Government of Canada's Tip Sheet on School Lunch Allergen Safety