Heartburn is a burning feeling in the chest caused by stomach acid travelling up towards the throat.

Causes & Symptoms

Heartburn usually happens after meals, near bedtime or during the night.

The symptoms of heartburn include:

  • A burning sensation in the chest or throat after eating.
  • A hot sour or salty tasting fluid in the back of your throat accompanied with difficulty swallowing.
  • Pressure behind the breastbone.
  • Feeling bloated.
  • Needing to burp.
  • Feeling sick.

In the majority of cases, heartburn is a natural response to stomach acid. But we understand how disruptive it can be, which is why we’ve identified foods that are best to avoid.

Which food cause heartburn?

  • Fried and greasy foods
  • Eating too much
  • Eating too quickly
  • Fatty meats and dairy products
  • Alcohol, caffeinated drinks, and spicy food, which can all also cause the sphincter valve to open.

Stress and excess weight are also contributing factors, so observing a careful diet and getting plenty of exercise will likely help. That said, you don’t have to put your life on hold because of heartburn—we’re here to help.


Heartburn can have a huge impact on both your quality and quantity of sleep, with acid reflux most likely to occur around bedtime. Compounding this is the fact that lying down makes it easier for the acid to travel up your throat. What’s more, heavy meals before bed puts more pressure on your upper oesophageal sphincter valve, forcing it open.

  • Eating heavy meals. Keep your meals light and your portions small to lower your likelihood of heartburn.
  • Fatty foods. Foods high in fat can occasionally be culprits as well.
  • Stress and anxiety. Did you know that stress can cause an upset stomach? That’s because anxiety uses up our prostaglandins, lipids in our body that protect us from acid.
  • Drinking alcohol. Alcohol relaxes the lower oesophageal sphincter (the muscles that protect you from acid). Plus, the greasy foods we enjoy alongside a drink don’t help matters either.
  • Smoking. Like alcohol, nicotine relaxes the lower oesophageal sphincter, increasing the likelihood of acids refluxing (moving) up your stomach.

Lifestyle is always an important consideration. Quitting smoking, watching what you eat, and taking steps to reduce stress are all effective measures. In the interim, Gaviscon is designed to help. Gaviscon creates a protective layer on top of your stomach acid that protects you from the potential harms of heartburn—especially when you’re sleeping.


To stop acid from rising up and causing irritation, Gaviscon products use sodium alginate, a viscous formulation that forms a protective barrier in the stomach. Gaviscon products also contain antacids, which turn excess acid into water.

By combining the two, you enjoy soothing relief, thereby taking your life off pause.

Dosage: Take 10–20ml (Gaviscon Double Action) after meals and at bedtime. Consider one teaspoon to equal 5ml. 

For children 12 years and over: Take 5–10ml (one to two 5ml spoonfuls) after meals and at bedtime, up to four times a day (Gaviscon Peppermint).

All information presented is not meant to diagnose or prescribe. If symptoms are severe or prolonged you should consult a doctor or pharmacist. Always read the label.