Feeling bloated or gassy after take-off? You’re not imagining it. At cruising altitude, the lower cabin pressure causes gas in the stomach and intestines to expand—an effect similar to how sealed packets of crisps puff up in flight. Research shows that reduced air pressure at around 30,000 feet causes bodily gases to expand by up to 30%, leading to discomfort such as bloating and cramps.
The foods you eat before and during the flight can either worsen or ease the problem. Gassy foods—like beans, fizzy drinks, and certain vegetables known as cruciferous vegetables—are best avoided. These include broccoli, cauliflower, Brussels sprouts, and cabbage, which are known to produce gas during digestion.
How to enjoy your flight:
Eat lightly before your flight, steering clear of foods that cause gas. Choose non-carbonated drinks and, when safe, move around the cabin to aid digestion. Wearing loose-fitting clothing can also reduce abdominal pressure. These simple steps can significantly improve your comfort while flying.