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Acid Reflux

A burning sensation in the chest or throat caused by stomach acid rising into the oesophagus. One of the most common digestive symptoms, often associated with gastro-oesophageal reflux disease (GORD).

CategoryDigestive
Acid Reflux — health symptom
Reviewed by Ciara Magee · Functional Health
26 March 2026

At a glance

Acid Reflux at a glance

What it is

Acid reflux is characterised by retrograde flow of gastric acid into the oesophagus, causing burning and regurgitation.

Commonly experienced as

  • Burning sensation in the chest, particularly after eating or when lying down
  • Sour or bitter taste in the mouth or throat
  • Regurgitation of food or liquid
  • Throat irritation, hoarseness, or chronic cough
  • Sensation of a lump in the throat

Context

Patterns of Acid Reflux

Acid reflux occurs when the lower oesophageal sphincter fails to close fully, allowing stomach acid to flow upwards into the oesophagus and sometimes the throat. It causes a characteristic burning sensation (heartburn), sour or bitter taste in the mouth, regurgitation, and sometimes difficulty swallowing. Triggers include large meals, lying down after eating, fatty or spicy foods, alcohol, caffeine, chocolate, tomatoes, citrus, smoking, obesity, and pregnancy. Chronic acid reflux (GERD) can damage the oesophageal lining over time. Stress and anxiety worsen symptoms by increasing acid production and slowing gastric emptying. Holistic assessment explores dietary patterns, meal timing, stress load, and lifestyle factors alongside structural contributors.

Could this be you

People commonly experience

Acid Reflux shows up differently for everyone. Browse by how it tends to be felt — these are common experiences, not a checklist or a diagnosis.

In the body5 common experiences
  • Burning sensation in the chest, particularly after eating or when lying down
  • Sour or bitter taste in the mouth or throat
  • Regurgitation of food or liquid
  • Throat irritation, hoarseness, or chronic cough
  • Sensation of a lump in the throat

Common experiences people describe — not a diagnostic checklist.

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Related conditions

Conditions people often explore alongside acid reflux.

The Evidence

Evidence context: Acid Reflux

What research and clinical practice tell us about acid reflux, and when to seek professional assessment.

Overall pictureHigh evidence base

Well-researched symptom with strong clinical and lifestyle evidence

Acid reflux is one of the most studied digestive symptoms, with strong evidence supporting both medical and lifestyle approaches. Understanding your triggers and patterns is a useful starting point, but persistent or worsening symptoms warrant professional assessment.

  • When to seek urgent careSome symptoms alongside reflux require prompt medical attention and should not be self-managed.

    Difficulty swallowing, unexplained weight loss, blood in vomit, or black tarry stools alongside reflux symptoms need prompt professional review. New-onset reflux in adults over 55 with no prior history also warrants investigation. Severe nocturnal pain waking you from sleep should not be attributed to routine reflux without assessment.

  • What the evidence showsAcid reflux has a strong evidence base across both medical and lifestyle interventions.

    Proton pump inhibitors have strong clinical evidence for managing gastro-oesophageal reflux disease, which affects a significant proportion of Western populations. Lifestyle changes — including meal timing, portion size, and reducing known dietary triggers — have moderate evidence for symptom reduction. Alginate-based preparations show good evidence for post-meal symptom relief.

  • Safety considerationsSome common habits and long-term approaches carry risks worth knowing about.

    Long-term use of proton pump inhibitors without periodic review or investigation of the underlying cause is a recognised concern — ongoing symptoms should be reassessed rather than indefinitely suppressed. Lying flat immediately after meals consistently worsens reflux and is best avoided. Self-managing persistent symptoms without professional input may delay identification of a contributing condition.

  • Approaches people exploreA range of conventional, complementary, and lifestyle approaches are used for acid reflux.

    Conventional care approaches include acid-reducing medications and lifestyle modification. Complementary approaches include herbal preparations such as deglycyrrhizinated liquorice, aloe vera, and slippery elm, which have varying levels of clinical evidence. Stress is explored within holistic frameworks due to its influence on lower oesophageal sphincter tone and gastric acid secretion, both directly relevant to reflux symptom patterns.

  • Traditional system perspectivesTraditional medicine systems offer their own frameworks for understanding and addressing reflux symptoms.

    Traditional Chinese Medicine associates acid reflux with upward-rebelling Stomach Qi, often linked to Liver Qi stagnation or Stomach Heat. Ayurveda frames it as excess Pitta affecting digestive function. These frameworks inform herbal and dietary recommendations within their respective systems. Evidence for specific traditional interventions varies, and practitioners trained in these systems are best placed to apply them appropriately.

  • Working with a practitionerProfessional input helps identify contributing factors and ensures symptoms are properly assessed.

    A GP or gastroenterologist can assess whether symptoms reflect uncomplicated reflux or an underlying condition such as hiatus hernia or gastroparesis. Dietitians can support structured dietary review. Complementary practitioners may assist with stress, lifestyle, and adjunct approaches. Any practitioner making inflated outcome claims or discouraging conventional assessment for persistent symptoms should be approached with caution.

Safety first

Staying safe

General, informational guidance — not diagnostic. A qualified practitioner can advise on your own situation.

  • Long-term PPI use without periodic review and investigation of underlying cause
  • Lying flat immediately after meals

Top Practitioners

Community-rated Acid Reflux practitioners

Practitioners are ranked using relevance, experience signals, reviews, and support-area fit.

References

Evidence & Research

Educational sources that inform this overview. Inclusion is for context and does not imply endorsement.

  1. Epidemiology of gastro-oesophageal reflux disease: A systematic review
  2. The Montreal definition and classification of gastroesophageal reflux disease: A global evidence-based consensus
  3. Gastroesophageal reflux disease

Full citations are maintained by the Gyfts editorial team and reviewed periodically.

Keep exploring

Find Acid Reflux practitioners you can trust

Browse practitioners, explore honest overviews, and take what you learn to a conversation — at your own pace.