preventing acid reflux

Overview

Acid reflux happens when stomach acid flows back up into the oesophagus (the tube that connects your throat to your stomach). This causes a burning feeling in the chest, often called heartburn. Occasional reflux is normal, but when it happens often, it can damage your food pipe and needs attention.

Very common. Many people have heartburn now and then. In fact, around 10-20% of people in the UK experience reflux symptoms regularly.

It affects people of all ages, but it is more common in adults, especially those who are overweight, pregnant, or over 40. Children and teenagers can also have it.

Symptoms

Common symptoms

• Burning sensation in the chest (heartburn)
• Regurgitation – a sour or bitter taste in the back of the mouth
• Chest pain when lying down or bending over
• Difficulty swallowing or feeling of a lump in the throat
• Frequent cough or sore throat, especially at night

Symptoms in children

• Spitting up or vomiting more than usual
• Irritability, especially after feeding
• Poor feeding or refusal to eat
• Coughing or wheezing that does not go away
• Vomiting in older children that seems unrelated to a stomach bug

Symptoms in older adults

• Milder heartburn – some older people do not feel pain but have other symptoms
• Chest pain that is mistaken for angina (it is important to rule out heart problems)
• Hoarseness, cough, or frequent throat clearing
• Wheezing or asthma-like symptoms
• Difficulty swallowing or food getting stuck

Causes

Main causes

• A weak or relaxing lower oesophageal sphincter (the ring of muscle at the bottom of the oesophagus)
• A hiatus hernia – part of the stomach slides up into the chest
• Increased pressure on the stomach, for example from being overweight or pregnant
• Delayed stomach emptying, which allows acid to sit longer

Risk factors

• Large, heavy meals, especially close to bedtime
• Eating fatty, fried, spicy, citrus, chocolate, mint, onions, or garlic foods
• Drinking alcohol, coffee, or fizzy drinks
• Smoking and second-hand smoke
• Being overweight or obese
• Pregnancy
• Certain medicines – ask your pharmacist or doctor if any you take make reflux worse

When to see a doctor

See a doctor urgently if:

• If you have any emergency symptoms listed above
• If you have chest pain that feels tight or crushing, especially with breathlessness, sweating, or pain in the jaw or arm
• If you vomit blood or have black, tarry stools

Book a routine appointment if:

• Heartburn more than twice a week
• Symptoms that interrupt your sleep
• Difficulty swallowing that does not go away
• A persistent cough, hoarseness, or sore throat
• Symptoms that continue despite lifestyle changes

Diagnosis

Your doctor will ask about your symptoms and health history, and may examine your stomach and chest. They may recommend tests if symptoms are frequent, severe, or not improving with simple measures.

Tests that may be done

• Upper endoscopy (a thin, flexible camera tube passed through your mouth to look at your oesophagus and stomach)
• A test to measure acid levels in your oesophagus (pH monitoring)
• Barium swallow (an X-ray after drinking a chalky liquid that coats your digestive tract)

What to expect at your appointment

Your doctor will first talk through your symptoms. You may be asked to keep a diary of what you eat and drink and when you feel symptoms. Tests are usually done in a clinic or hospital and, for endoscopy, you may be given a mild sedative. Most people are home the same day.

Treatment

Treatment for acid reflux starts with lifestyle changes. If these are not enough, your doctor may suggest medicines that reduce or neutralise stomach acid. In rare cases, surgery might be considered.

Self-care at home

• Eat smaller, more frequent meals
• Avoid foods and drinks that trigger your reflux
• Finish eating at least 2-3 hours before going to bed
• Raise the head of your bed by 10-20 cm using blocks (not just extra pillows)
• Do not wear tight clothes around your waist
• Stay at a healthy weight, and aim to lose weight if you are overweight
• Stop smoking and reduce alcohol intake

Medical treatments

Medicines for reflux work by reducing the amount of acid in your stomach or by strengthening the lower oesophageal sphincter. Some are available over the counter (like antacids and acid-reducing tablets), and others are only available on prescription. Always ask your doctor or pharmacist which approach is right for you. Some medicines are not suitable for long-term use without a doctor's check-up.

When is surgery considered?

Surgery is usually only considered for severe cases where medicines do not work well or where there are complications. A common procedure is called fundoplication, which tightens the valve between the stomach and oesophagus. Your doctor will explain if this might be an option.

Living with this condition

With acid reflux, small daily habits can make a big difference. You don't need to give up all foods you love — you just need to find what works for you. Keep a symptom diary, plan meals around your triggers, and be consistent with mealtimes and sleeping positions.

Lifestyle tips

• Keep a healthy weight; even losing 5-10% of your body weight can help if you are overweight
• Avoid eating late at night – have dinner at least three hours before bed
• Sleep with your upper body raised using a wedge pillow or bed blocks
• Wear comfortable, loose clothes
• Manage stress with breathing exercises, walking, or talking to someone you trust

Diet and exercise

Eat a balanced diet full of vegetables, lean proteins, and whole grains. Gentle exercise like walking, swimming, or yoga supports digestion and healthy weight. Avoid intense exercise right after a meal, as it can worsen reflux. At the gym, avoid exercises that put pressure on your abdomen, like heavy sit-ups.

Mental health and emotional wellbeing

Living with frequent reflux can be frustrating and tiring. Worrying about when symptoms will flare up can affect your mood and sleep. It is normal to feel this way. Talking to your doctor about both the physical and emotional sides of reflux can help. If you are feeling very anxious or low, please talk to a mental health professional or ask your doctor for support.

Prevention

For many people, acid reflux can be prevented or greatly reduced through lifestyle choices. While you cannot always control your body's valve, you can control your eating habits, weight, and sleep position. Preventing reflux is not about being perfect — it is about consistency and finding what works for your body.

Complications

If left untreated

• Oesophagitis – inflammation or damage to the lining of the food pipe
• Stricture – a narrowing of the oesophagus that makes swallowing harder
• Barrett's oesophagus – a change in the cells of the oesophagus that is linked to a small risk of cancer
• Respiratory problems – if acid is breathed into the lungs, it can worsen asthma or cause pneumonia

Long-term outlook

The outlook for acid reflux is generally very good. Most people find significant relief with lifestyle changes and simple treatments. If reflux is managed well, complications are uncommon. For a small number with serious changes in the oesophagus, regular monitoring is needed, but this is rare. The key is to ask for advice and not ignore persistent symptoms.

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