Nutrition experts warn that common food and drink choices during flights can worsen dehydration, bloating, dry skin and fatigue. The advice matters because cabin conditions, particularly very dry air, can quickly affect comfort and wellbeing while travelling.

Changes in cabin humidity, pressure and oxygen levels can contribute to these problems, with dry air identified as the main cause of dehydration. Experts say dehydration may lead to thirst, headaches, low energy, muscle cramps and dizziness, making sensible hydration and food choices important before and during a flight.