Acid reflux — the upward movement of stomach acid into the oesophagus — is one of the most common digestive complaints in the UK. Gastro-oesophageal reflux disease (GERD) is the chronic form, characterised by persistent reflux symptoms that affect quality of life and, over time, can damage the oesophageal lining. Diet plays a significant role in both triggering and managing reflux, and dietary modifications are the first-line management recommendation before medication in many cases.
How Reflux Happens
The lower oesophageal sphincter (LOS) — the muscular valve at the junction of the oesophagus and stomach — normally prevents stomach contents from moving upward. Reflux occurs when the LOS relaxes inappropriately, when stomach pressure exceeds the LOS's closure force (as in obesity), or when the LOS is structurally weakened (as in hiatus hernia). Diet affects reflux through multiple mechanisms: some foods directly relax the LOS; some stimulate excess acid production; some delay gastric emptying; and portion size and meal timing affect intragastric pressure.
The NHS guidance on heartburn and acid reflux provides a useful overview of causes, diagnosis, and when to seek medical advice.
Trigger Foods: The Evidence
Several foods have consistent evidence for worsening reflux through the mechanisms above. Foods that relax the LOS: alcohol, chocolate, peppermint, fatty foods, and coffee. Foods that increase gastric acid: citrus fruits and juices, tomato-based products, spicy foods, and coffee (again). Foods that delay gastric emptying (increasing pressure in the stomach): high-fat meals, large portions of any food.
Individual trigger profiles vary — not everyone responds to the same foods. A two-week food and symptom diary, identifying the specific foods that worsen your symptoms, is the most practical first step in personalising dietary management. The British Dietetic Association recommends this personalised approach over blanket avoidance of all common triggers.
Eating Habits That Reduce Reflux
How you eat matters as much as what you eat for reflux management. Smaller, more frequent meals reduce the gastric distension that increases reflux risk. Eating slowly and chewing thoroughly reduces the air swallowing that contributes to upper GI symptoms. Leaving at least three hours between the last meal and lying down prevents postprandial reflux during sleep — one of the most troublesome patterns for GERD sufferers. Avoiding tight waistbands and excess abdominal pressure after eating reduces the physical pressure on the LOS.
Weight and Reflux
Excess weight — particularly central abdominal adiposity — directly increases intra-abdominal pressure and GERD risk. The NHS identifies weight management as one of the most effective non-pharmacological interventions for GERD in people who are overweight. Even a modest weight reduction (5–10% of body weight) can produce meaningful symptom improvement.
Foods That May Help
Some foods have evidence for reducing reflux symptoms. Alkaline-forming foods including vegetables, non-citrus fruits, and lean proteins may buffer gastric acid. High-fibre foods support healthy gastric motility. Ginger has evidence for reducing nausea associated with reflux. Aloe vera juice has limited but positive evidence for reducing reflux symptoms.
For London office workers managing reflux, the quality of the daily work lunch matters directly. A fresh, moderately portioned, low-fat lunch — avoiding the common reflux triggers of excess fat, spice, and large portion sizes — is better managed with a quality caterer delivering individual, nutritionally balanced meals than with grabbed fast food. View our team lunch options from Vanda's Kitchen. For persistent symptoms, consult your GP and visit the British Society of Gastroenterology for patient resources.
Supporting Your Health Through Daily Nutrition
Understanding the principles covered in this article is valuable — but applying them consistently through daily food choices is where the real benefit comes. For London office workers, the quality of the daily work lunch is one of the most controllable nutritional variables in the day. A fresh, balanced, nutritious lunch delivered to your desk removes one decision from a demanding schedule and ensures a consistently good nutritional foundation.
Vanda's Kitchen near St Paul's Cathedral EC4 delivers certified halal, 100% nut-free, freshly prepared corporate catering across the City of London and central London. Our Filipino-inspired menu is built around lean proteins, fresh vegetables, and complex carbohydrates — the nutritional combination that supports energy, performance, and health throughout the working day. Every item we produce carries full allergen labelling in compliance with Natasha's Law, and our entire kitchen is independently certified halal by the Halal Friendly List.
Our Selfridges Food Hall presence confirms the quality standard we maintain. For London teams wanting consistently nutritious, genuinely delicious, allergen-safe daily lunches, Vanda's Kitchen is the straightforward answer. View our team lunch options, WhatsApp us for a same-day response, or send an enquiry. Read our healthy office lunch delivery guide for more on what we offer and how our delivery works.
Frequently asked questions
Can acid reflux permanently damage the oesophagus if managed only with diet?
Dietary management reduces symptom frequency and severity, but if reflux continues despite dietary changes, the oesophageal lining remains exposed to acid. Persistent GERD can cause Barrett's oesophagus — a change in the oesophageal lining that carries a small but real increased risk of oesophageal cancer. Anyone with reflux symptoms more than twice per week for more than a few weeks should consult their GP for proper assessment rather than relying solely on dietary management.
Is it possible to have reflux without feeling classic heartburn?
Yes. Silent reflux (laryngopharyngeal reflux) produces symptoms in the throat rather than the chest — chronic throat clearing, hoarseness, a sensation of something stuck in the throat, or a persistent cough — without the typical burning chest sensation. It is frequently misdiagnosed as a throat or respiratory condition. An ear, nose and throat specialist or gastroenterologist can investigate if these symptoms are present without obvious heartburn.
Does eating late at night cause acid reflux or is that a myth?
It is well supported by evidence. Lying down within two to three hours of eating increases reflux risk because gravity no longer assists the lower oesophageal sphincter in keeping stomach contents down. The stomach is also most acidic in the hours after a meal. Elevating the head of the bed by 15-20cm using a wedge pillow reduces nocturnal reflux for those who cannot avoid late eating.
Are antacids safe to use daily for reflux?
Over-the-counter antacids neutralise stomach acid for short-term symptom relief and are safe for occasional use. Daily use warrants medical review — persistent reflux requiring daily antacids suggests the underlying cause needs investigation and management. Long-term proton pump inhibitor (PPI) use, often prescribed for GERD, has its own considerations including effects on calcium absorption and gut microbiome that should be discussed with your GP.
Why do some people develop reflux only in middle age having never had it before?
Several age-related changes increase reflux risk in middle age: lower oesophageal sphincter tone reduces modestly with age; increased body weight — particularly central adiposity — increases intra-abdominal pressure; hiatus hernia is more common in people over 50; and some medications commonly started in middle age, including aspirin and non-steroidal anti-inflammatories, worsen reflux. New-onset reflux in middle age warrants a GP consultation to identify the specific cause.