Heat, travel, and alcohol can all worsen bloating in summer. Discover the causes and Dr Chris George’s 6 expert-backed tips to feel more comfortable.
What is bloating?
Bloating is more than just physical discomfort, it can affect confidence, mood, and overall wellbeing. It is commonly described as a sensation of fullness, tightness, or pressure in the abdomen. In some people, bloating causes visible swelling of the stomach, known as abdominal distension, while others experience discomfort without any noticeable increase in waist size.
Many people are familiar with this uncomfortable sensation, which may also be accompanied by meteorism, bloating specifically caused by excess gas in the digestive tract. Symptoms are often described as heaviness, swelling, tightness, trapped wind, and changes in digestion. For many, bloating can significantly affect day-to-day life and become both troublesome and frustrating to manage.
During the summer months, people naturally want to feel comfortable and confident in lighter clothing, swimwear, holidays, and social situations. Unfortunately, this is often the time when bloating becomes more noticeable.
Why does summer make bloating worse?
The exact cause of bloating is not always straightforward and can vary greatly from person to person. In many cases, bloating is linked to several factors within the digestive system.
1. Dehydration and bloating
Summer brings not only warmer weather but also changes in our diet and routine, both of which can affect gut health. During hot weather, people are more likely to become mildly dehydrated. Dehydration can slow gut motility, leading to constipation, while also causing the body to retain water - both of which can worsen bloating.
2. Eating more fibre too quickly
Dietary habits also tend to change during the summer months. Many people eat more salads, fruits, vegetables, and seasonal treats such as ice cream. While an increase in fibre-rich foods is beneficial for the gut microbiome and overall health, a sudden increase in fibre intake can temporarily worsen bloating.
This happens because gut bacteria ferment fibre, producing gas as a by-product. If fibre intake increases too quickly, the digestive system may produce more gas than the body can comfortably manage, leading to bloating, trapped wind, and abdominal discomfort.
3. Alcohol and gut health
Alcohol consumption also tends to rise during the summer, particularly during holidays, barbecues, and social events. Alcohol can contribute to bloating in several ways: it may irritate the stomach lining, disrupt the balance of healthy gut bacteria, cause dehydration, and promote fluid retention. Certain drinks, such as beer and champagne, may worsen symptoms further because they are carbonated and often high in sugar, increasing both gas and fermentation within the gut.
4. Poor sleep in the heat
Sleep is another important factor. Good-quality sleep is essential not only for overall health but also for healthy digestion. Research suggests that hot weather can negatively affect both sleep quantity and sleep quality during the summer months. Poor sleep increases stress hormones, which can disrupt the gut microbiome and slow digestion, ultimately contributing to bloating.
5. Travel disruptions and "plane bloat”
For many people, summer also marks the beginning of the holiday season, bringing long car journeys and flights abroad. Travel can easily disrupt normal digestive routines through reduced movement, irregular meal timings, unfamiliar foods, and changes in daily habits. Sitting still for long periods can make the gut feel sluggish, increasing the risk of constipation and trapped wind.
Flying may worsen bloating further because lower cabin pressure causes gas within the abdomen to expand, leading to discomfort and increased flatulence - sometimes referred to as “plane bloat”.
6 tips to reduce bloating this summer
1. Stay hydrated
Maintaining good hydration during the summer supports healthy digestion, reduces water retention, and helps the body function optimally.
2. Limit fizzy drinks and alcohol
What we drink can have a significant impact on gut health. Fizzy drinks increase the amount of gas entering the digestive tract, while excessive alcohol can irritate the gut and worsen bloating.
3. Increase fibre gradually
Although seasonal diets often change quickly, it is important to increase fibre intake slowly. Gradually adding more fruits and vegetables gives the digestive system time to adapt and may help reduce excess gas production. Adults should aim for at least 30g of fibre per day.
4. Identify personal triggers
Everyone’s gut microbiome is unique, and bloating triggers vary from person to person. Keeping a food and symptom diary can help identify foods, drinks, or habits that worsen symptoms.
5. Prioritise rest and manage stress
Stress, sleep, and digestion are closely connected. Focusing on stress reduction and improving sleep quality may help optimise digestion and reduce troublesome symptoms, including bloating.
6. Start your mornings with Symprove
80% of Symprove users report a reduction in bloating since starting Symprove 6+ months ago. Based on a 2026 customer survey of 1,193 people who suffered with bloating, prior to taking Symprove. May 2026.
When should you see a doctor about bloating?
Although bloating is a common symptom and can be perfectly normal it is important not to ignore it. If bloating hurts, affects your day-to-day life or is not normal for you then always speak with a medical professional in the first instance.
Summary
Bloating is a very common symptom and changes to our lifestyle over the summer months can have a big impact on our digestive health and symptoms including bloating.
The good news is there are lots of positive changes and things you can consider to improve your gut health and in turn reduce the impact of bloating.
Sources
Sufficient water intake maintains the gut microbiota and immune homeostasis and promotes pathogen elimination. (2024). Link.
Abdominal Bloating: Pathophysiology and Treatment. (2013). Link.
Seasonal variation in alcohol use. (2015). Link.
Impact of heat exposure on sleep health and its population vulnerability in the United States. (2025). Link.
