An estimated two million people in the U.K. are living with a food allergy — and one in 200 of them are allergic to nuts, according to the Foods Standards Agency. Nut traces can be found in all manner of foods, for example, in sesame seeds, in bread and in lupin flour that’s used in gluten-free pasta. Basically, foods you wouldn’t really expect to be dangerous for someone with a nut allergy.

This can make flying a minefield. Not just because traces of nut could be in the air vents of a plane but because of cross-contamination. But that doesn’t mean flying with an allergy or flying with someone with an allergy is impossible.

What is an allergy?

An food allergy is when your immune system has a response to a particular food. It’s the immune system’s job to fight infections, but there can be instances when it becomes primed to respond to foods. This can be triggered when food is eaten and also when inhaled or through touching — the reason airlines make an announcement that nuts will not be served on the flight if someone on board has a nut allergy.

Once someone has come in contact with an allergen, their immune system reacts and symptoms can either appear immediately or take several hours. Symptoms include coughing, vomiting, itchy throat or in the worst case scenario, anaphylactic shock (when the the airways narrow and blood pressure drops).

Read more: Should I take supplements when flying — if so, which ones? 

A close up of salted peanuts in a white bowl next to allergy medication on a white top.
(Photo by Tim Grist Photography/Getty Images)

Someone with an intolerance will have less serious symptoms, such as digestive issues when consuming the food. This can be something like a gluten intolerance. Unlike someone with an allergy, a person living with an intolerance can sometimes get away with eating small amounts of the food and be near others who are consuming it.

If you think you have an allergy, you can get tested at your GP. Intolerances are slightly harder to pinpoint but the gold standard of understanding a food intolerance is to cut the food out for 21 days and then consume a large amount of it on day 22.

You would then wait seven days to see if any symptoms appear. The most common intolerances are gluten, dairy, egg and soy, so it may be worth considering an elimination diet if you are suffering with digestive symptoms.

For those who have an intolerance, you can order a free-from meal ahead of your travel. In fact, it’s usually fresher and the last time I experienced it on British Airways, I had fresh berries and salad unlike the general food offering.

Read more: Nutrition hacks when flying economy, business and first 

Photo by RyanKing999/Getty Images


(Photo by RyanKing999/Getty Images)

Airline Policies

In recent months, both Virgin and British Airways have updated their allergen policy:

Virgin in summary:

  • Food items may contain traces of allergens since they are processed on or with equipment that processes products that may contain allergens.
  • Peanuts are never knowingly included in any meals. However, meals are not produced in a nut-free environment so may contain traces.
  • All other nuts may also be served on flights to other passengers as part of the menu ingredients and/or the snack service, in any cabin. Virgin can’t stop other passengers from bringing (or eating) their own food on board, which may include nuts.
  • Virgin strongly encourages passengers to take all necessary precautions to prepare for the possibility of inadvertent exposure.

British Airways in summary:

  • British Airways cannot guarantee an allergen-free cabin environment or prevent other passengers from bringing their own food on board.
  • The airline uses the recommendations of the International Air Transport Association (IATA) for allergen-sensitive passengers to make sure their flight is as comfortable as possible.

It is also advised that if you have an allergy you should take measures such as keeping your Epipen in your hand luggage, labelling medication and informing crew on boarding about what allergy you have.

For U.S. carriers’ policies on allergens, visit here.

Photo by Maskot/Getty Images
(Photo by Maskot/Getty Images)

What else can you do if you are travelling with an intolerance or allergy

Inform the airline: You can call the airline at the time of the booking, at check-in or tell the ground staff and cabin crew and they will accommodate your needs as best they can. Most airlines ask passengers to let them know about their allergies sooner.

Take your own food: Prepare snacks in advance and take them with you on the flight. You will then know what is in your food.

Bring medications and medical documents: The airline may ask you for documents about your allergy and medication. It’s a good idea to have this just in case — it could just be a letter from your doctor.

Clean around you when you board: If you have a severe allergy, it may be a good idea to clean around your seat to make sure it’s free from allergens.

Featured photo by Alberto Riva/The Points Guy.

Daniel O’Shaughnessy
Daniel O’Shaughnessy is The Point’s Guy Nutrition writer. He is an award-winning Nutritionist based in London.



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