Key takeaways

  • Heartburn and reflux triggers vary, so personal patterns matter more than universal food bans.
  • Meal size, timing, alcohol, smoking, body position and some medicines can influence symptoms.
  • Difficulty swallowing, bleeding, weight loss, persistent vomiting or chest pain needs prompt assessment.

Acid reflux happens when stomach contents move back into the oesophagus. It may cause a burning feeling behind the breastbone, a sour taste or regurgitation. Occasional reflux is common; gastro-oesophageal reflux disease, or GERD, is a more persistent condition that causes troublesome symptoms or complications.

Not every episode is caused by the same food, and a universal “reflux diet” can become more restrictive than necessary.

Common symptoms

Heartburn and regurgitation are typical, but reflux can also be associated with nausea, chest discomfort, chronic cough, hoarseness or difficulty swallowing. Chest pain has many possible causes. Seek urgent medical help for new or severe chest pressure, especially with breathlessness, sweating, faintness or pain spreading to the arm, jaw or back.

Why reflux occurs

A ring of muscle between the oesophagus and stomach normally limits backward flow. Reflux can happen when it becomes weak or relaxes at the wrong time. Pregnancy, smoking, some medicines, a hiatus hernia and excess pressure around the abdomen may contribute.

Notice your own triggers

Commonly reported triggers include alcohol, coffee and other caffeine sources, chocolate, mint, spicy foods, acidic foods and high-fat meals. These foods do not affect everyone. Track a repeated pattern before removing several foods at once.

Adjust timing and portion size

Large meals stretch the stomach and may worsen symptoms. Try a smaller evening meal and avoid lying down immediately afterwards. For night-time reflux, NIDDK notes that eating at least three hours before lying down may help.

Other practical habits

  • Eat at a comfortable pace and stop before feeling overfull.
  • Remain upright after meals.
  • If symptoms happen at night, ask a clinician about safely raising the head of the bed rather than stacking ordinary pillows.
  • Avoid smoking and notice whether alcohol worsens symptoms.
  • If you are above your comfortable weight, discuss whether gradual weight loss may help; avoid crash diets.

Using over-the-counter medicines

Antacids and other reflux medicines can help in appropriate situations, but they work differently and may interact with other medicines. Ask a pharmacist which option fits your symptoms and how long it is safe to use. Frequent reliance on self-treatment is a reason for review.

When to see a doctor

Arrange an assessment when reflux occurs regularly, is getting worse, disturbs sleep, or does not improve with reasonable self-care. Seek prompt help for difficulty or pain with swallowing, food sticking, persistent vomiting, vomiting blood, black stools, unexplained weight loss or signs of anaemia.

Persistent reflux can inflame or narrow the oesophagus and sometimes lead to other complications, so repeated symptoms should not simply be normalised.

Sources and further reading

NIDDK: Symptoms and causes of GER and GERD and NIDDK: Eating and nutrition for GERD.

This article is for general education and does not replace individual medical advice.