People at risk of potentially life-threatening allergic reactions, known as anaphylaxis, should always carry two adrenaline pens, the review says.

And airlines should consider keeping a supply of them onboard in case of emergency and have clear policies on food allergies on their website.

Allergy UK said air travel “must be safe and inclusive for everyone”.

“That means understanding and supporting the needs of those living with severe allergies, who often have to travel with high levels of anxiety,” the charity’s chief executive, Simone Miles, said.

Simon Williams, chief executive of charity Anaphylaxis UK, said: “A key take-home message is the importance of passengers cleaning their seat area, including the tray table and the seat-back entertainment system.”

About one in 50 children and one in 200 adults in the UK have a nut allergy, according to the charity, external.