Small food particles can frequently adhere to screens, tray tables, and seats and move from hands to the mouth or face.
However, according to the analysis, there is no proof that ventilation systems disperse nut allergies throughout the cabin.
Experts recommend allowing passengers with food allergies to board first and clean their seat themselves when there is limited time for cabin cleaning and turnaround times between flights are short.
Experts were consulted by the UK Civil Aviation Authority to examine the dangers of flying for those who have dietary allergies.
Airlines frequently issue warnings to customers not to consume nuts while flying because of the widespread belief that peanut particles can spread throughout the air.
Passengers shouldn’t be concerned about food transmission in the air, according to review author Prof. Paul Turner, a clinical professor at Imperial College London who specializes in anaphylaxis and pediatric allergies.
According to him, there is no proof that nut fragments could induce reactions when they pass through an airplane’s cabin ventilation system.
Furthermore, even if they are sensitive to extremely small amounts of food, the great majority of people with food allergies do not respond to the smell of food.