What you need to know about heartburn

March 11, 2026

Dr. Chris Lim
Reviewed by Dr. Christopher Sim
Written by updoc's Editorial Team
What you need to know about heartburn

Important Note: This article provides general health information and is not a substitute for professional medical advice. Always consult a qualified healthcare professional for diagnosis and treatment of any health condition.

If you’ve noticed a burning feeling in your chest or throat after eating, it’s probably heartburn. It can feel uncomfortable and distracting, and sometimes it lingers long after the meal’s over.

The good news is that it’s usually easy to manage. Understanding what triggers it and how to soothe it at home can make a big difference to how you feel day to day. 

In this article, we’ll cover what causes heartburn, why it happens, and a few simple drinks that can help relieve the discomfort.

Drinks that may help soothe heartburn

When heartburn strikes, the first thing many of us reach for is something to drink. Here are a few options that may help ease that burning feeling, plus some tips to keep in mind.

Water: The simple soother

Plain water is often your best option when you’re dealing with heartburn. When stomach acid moves up into your food pipe (oesophagus), small, steady sips of water may help soothe the area and clear the acid back into your stomach. This can bring quick, short-term relief.

It’s best to sip slowly rather than gulping large amounts, which can fill your stomach too quickly and make symptoms worse.

Herbal teas: Gentle warmth for relief

Some herbal teas have naturally calming effects on the digestive system and can be a gentle way to ease irritation from heartburn. They’re often most soothing when served warm rather than hot.

However, if you have high blood pressure or are pregnant, it’s best to skip teas that contain a lot of licorice root, as they can raise blood pressure in some people.

Ginger tea

Ginger has long been used to settle the stomach. It contains natural compounds that may help calm irritation and reduce inflammation. To make ginger tea, steep a few slices of fresh ginger root in hot water for around five to 10 minutes before drinking.

Chamomile tea

Chamomile tea is known for its relaxing and soothing properties. It can help relax the muscles in your digestive tract and may ease mild inflammation, which could bring some relief from heartburn.

Keep in mind that not all herbal teas are helpful for heartburn. Peppermint tea, for example, can relax the muscle that keeps stomach acid where it belongs, which might make symptoms worse for some people.

Other potential aids (use with care and dilution)

Some people find relief from the following drinks, but it’s best to approach them with care. They don’t work for everyone and, in some cases, can make symptoms worse if used the wrong way.

Aloe vera juice

Aloe vera is known for its soothing, anti-inflammatory qualities. Some people find that drinking aloe vera juice helps calm irritation in the oesophagus. 

Always use purified or decolourised aloe vera juice with lower aloin levels, and check with a pharmacist or GP before trying it. Non-purified products can have laxative effects and may interact with certain medications.

Milk

For some, a small glass of milk brings temporary relief by coating the oesophagus and easing that burning feeling, but this effect isn’t long-lasting. The fat and calcium in milk can actually trigger your stomach to produce more acid once the initial comfort fades. If you want to try milk, go for skim milk rather than full-fat to reduce that risk.

The common causes of heartburn

Heartburn isn't just a random burning sensation; it's a symptom of something specific happening inside your body. Understanding the causes can help you prevent it.

What is heartburn?

Heartburn is the common term for acid reflux. It happens when stomach acid, which is very strong and designed to break down food, flows back up into your food pipe (the oesophagus). The oesophagus isn't built to handle this acid, so it gets irritated and inflamed, causing that burning feeling.

At the bottom of your oesophagus, there's a ring of muscle called the lower oesophageal sphincter (LES). Think of it like a one-way gate. Its job is to open to let food into your stomach and then close tightly to keep stomach contents from coming back up. Heartburn occurs when this muscle gate relaxes or weakens, allowing stomach acid to escape.

What can set off heartburn?

Many things can cause that muscle gate to relax or push stomach acid upwards. Here are some common culprits:

Food and drink choices

Certain foods and drinks are notorious for triggering heartburn. These include:

  • Fatty and fried foods: They take longer to digest, keeping food in the stomach longer.
  • Spicy foods: Can irritate the oesophagus.
  • Acidic foods and drinks: Such as citrus fruits (oranges, lemons), tomatoes, and tomato-based sauces.
  • Chocolate: Contains compounds that can relax the LES.
  • Caffeine: Found in coffee, tea, and some soft drinks, it can also relax the LES.
  • Alcohol: Can relax the LES and increase stomach acid.
  • Fizzy drinks: The bubbles can increase pressure in the stomach.

Eating habits

How you eat can also play a big role:

  • Large meals: Overfilling your stomach puts more pressure on the LES.
  • Eating too close to bedtime: Lying down soon after eating makes it easier for acid to flow back up.
  • Eating too quickly: This can lead to swallowing air, increasing stomach pressure.

Lifestyle factors

Your daily habits can influence heartburn frequency:

  • Being overweight or obese: Excess weight puts pressure on your abdomen, pushing stomach contents upwards.
  • Smoking: Chemicals in smoke can weaken the LES and increase acid production.
  • Stress: While stress doesn't directly cause heartburn, it can make symptoms worse by affecting digestive processes.
  • Tight clothing: Belts or tight waistbands can put pressure on your stomach.
  • Vigorous exercise: Exercise, especially after a meal, can jostle stomach contents.

Other factors

Some other situations can lead to heartburn:

  • Pregnancy: Hormonal changes and the growing baby put pressure on the stomach.
  • Certain medications: Some medicines, like certain pain relievers, can cause heartburn as a side effect.
  • Hiatus hernia: A condition where part of the stomach pushes up through the diaphragm.

Practical tips for managing heartburn

Beyond what you drink, adopting certain lifestyle habits can significantly reduce your heartburn episodes:

  • Eat smaller, more frequent meals: Instead of three large meals, try five or six smaller ones throughout the day. This prevents your stomach from becoming overly full.
  • Identify and avoid your trigger foods: Keep a food diary to note what you eat and when your heartburn occurs. This helps pinpoint your personal triggers.
  • Don't lie down after eating: Try to stay upright for at least 2-3 hours after a meal before going to bed or lying down.
  • Elevate your head in bed: If nighttime heartburn is an issue, try elevating the head of your bed by around 20 cm. You can do this by placing blocks under the bedposts or using a wedge pillow. Keep in mind that stacked pillows usually don’t provide the same steady support.
  • Maintain a healthy weight: Losing excess weight can significantly reduce pressure on your abdomen and stomach.
  • Quit smoking: Smoking weakens the muscle gate (LES) and damages the lining of your oesophagus.
  • Manage stress: Find healthy ways to cope with stress, such as exercise, meditation, or hobbies, as stress can worsen digestive issues.

When to see a doctor

While home remedies and lifestyle changes can often help manage heartburn, it's really important to know when to seek professional medical advice. You should see your doctor if:

  • Your heartburn happens more than twice a week or keeps coming back.
  • Over-the-counter medicines don’t bring relief, or you need them regularly.
  • The pain is severe or wakes you at night.
  • You have trouble swallowing, or it feels like food is getting stuck.
  • You’re losing weight without trying, or you’ve lost your appetite.
  • You notice vomiting, blood, or black stools.
  • You develop sudden chest pain that spreads to your arm, jaw or back, especially with sweating, nausea, or shortness of breath — call emergency services immediately.

If heartburn is affecting your day-to-day life, book an online appointment with one of our AHPRA registered Partner Doctors to talk through your symptoms. They can help you find the cause and recommend the right treatment plan for you.

FAQs

Is heartburn always serious?

No, occasional heartburn is very common and usually not serious. However, persistent or severe symptoms could indicate a more significant problem, like gastro-oesophageal reflux disease (GORD), which might need medical treatment.

Can stress cause heartburn?

Stress doesn't directly cause acid reflux, but it can definitely make your heartburn symptoms worse. When you're stressed, your body's pain perception can change, making you more aware of the burning sensation. Stress can also affect digestive processes.

How long does heartburn typically last?

The duration varies. Mild heartburn after a specific meal might last for a few minutes to a few hours. However, if you have frequent or prolonged heartburn, it could indicate a more chronic condition like GORD.

Are there any foods that always cause heartburn?

While some foods (like fatty, spicy, or acidic items) are common triggers for many people, no single food causes heartburn for absolutely everyone. It’s very individual, and what triggers heartburn in one person might not affect another. That's why identifying your own triggers is so important.

Important disclaimer

This article provides general health information based on trusted Australian guidelines and is intended for educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. 

Always seek the advice of your general practitioner or another qualified healthcare provider with any questions you may have regarding a medical condition. Do not disregard professional medical advice or delay in seeking it because of something you have read in this article.