By Dr Pranab Gyawali, Consultant Gastroenterologist (UK-trained) in Dubai
I’ve just come back from a lovely short holiday in Kathmandu, and it struck me that many of you will be flying over the coming weeks, particularly during the Christmas holiday period.
One of the most common problems people experience when flying is bloating and abdominal discomfort. While cabin pressure and dehydration play a role, food choices before flying are often overlooked.
In this short VLOG, I explain why flying places stress on the gut and which foods I personally avoid before flying, as simple, practical steps to help reduce bloating and digestive discomfort.
Why does flying place stress on the gut?
- Cabin pressure changes can cause gas in the gut to expand.
- Dehydration slows digestion and can worsen constipation.
- Prolonged sitting reduces gut motility.
- Delayed gastric emptying means heavier meals sit longer in the stomach.
Together, these factors can make the gut more sensitive during flights, particularly in people with underlying digestive conditions.
Why is bloating so common during flights?
- Gas expansion increases abdominal pressure.
- High-salt foods promote fluid retention.
- Fatty meals slow stomach emptying.
- Fizzy drinks introduce additional gas.
This combination explains why many travellers feel uncomfortable even on relatively short flights.
Which foods should you avoid before flying to reduce bloating?
1) Salty, ultra-processed foods
Packaged snacks and many airport fast foods can increase fluid retention, which can worsen bloating at altitude.
2) Fizzy drinks and sparkling water
Carbonated drinks introduce gas that can expand during flights, increasing abdominal discomfort.
3) Greasy or high-fat meals
Fat slows gastric emptying and may increase fullness, reflux, and bloating during travel.
Who is more likely to experience flight-related bloating?
Digestive symptoms during flights are more common in people with:
- Irritable Bowel Syndrome (IBS)
- Small Intestinal Bacterial Overgrowth (SIBO)
- Reflux or delayed gastric emptying
- Constipation-predominant bowel habits
- Stress-sensitive gut symptoms
Frequently Asked Questions
Why does flying cause bloating?
Cabin pressure changes can expand gas in the gut, while dehydration and reduced movement slow digestion and gut motility.
Is bloating during flights normal?
Yes. Many travellers experience bloating, particularly after salty snacks, heavy meals, or fizzy drinks.
Does flying worsen IBS or SIBO symptoms?
It can. People with IBS or SIBO are often more sensitive to gas and motility changes, so symptoms may be more noticeable during flights.
Can food choices before flying really make a difference?
Yes. Avoiding salty ultra-processed foods, carbonated drinks, and greasy meals before flying often reduces bloating and discomfort.
When should I see a doctor about bloating?
If bloating is persistent, severe, associated with weight loss, bleeding, or a sustained change in bowel habits, or occurs frequently outside of travel, a medical assessment may be helpful.
Recommended Guides
- Bloating Treatment in Dubai – common causes, triggers, and when to investigate further.
- IBS Treatment in Dubai – bloating, bowel habit changes, and food sensitivity patterns.
- SIBO (Small Intestinal Bacterial Overgrowth) – gas, bloating, and IBS-like symptoms.
- Acid Reflux Treatment in Dubai – reflux, belching, and upper abdominal discomfort.
- Constipation Treatment in Dubai – slow motility as a common driver of bloating.
- Gut Microbiome Test in Dubai – broader gut ecosystem insights for recurring symptoms.
- Hydrogen and Methane Breath Test for SIBO – non-invasive testing for gas-related symptoms.
Related Gut Health VLOGs
- IBS vs IBD: Understanding Gut Symptoms
- How Often Should You Poop?
- Ultra-Processed Foods & Gut Microbiome (Dubai)
- Fast Food & Your Gut Microbiome (Dubai)
- How Stress Affects Your Gut
- How Poor Sleep Affects Your Gut Health
- Late-Night Eating & Acid Reflux (Dubai)
- Coffee, Reflux & Bowel Symptoms (Dubai)
Investigations & Procedures
If you wish to discuss this further or would like to make an appointment, please use the booking form on this page. A member of our team will contact you within 12 business hours.