If you've tried antacids and reflux tablets and your symptoms have barely shifted, it's worth asking a different question: is it actually acid?

Bile reflux is less well known than acid reflux, but it's more common than many people realise, and it behaves differently. Understanding the difference can save you months of trying the wrong things.

What is bile reflux?

Bile is a yellow green digestive fluid made by the liver and stored in the gallbladder. It's released into the small intestine to help break down fats, and normally a valve at the bottom of the stomach, the pyloric valve, keeps it from flowing backwards.

Bile reflux happens when that valve doesn't close properly and bile washes back up into the stomach, and sometimes further up into the oesophagus. Bile is irritating to the stomach lining, and over time it can contribute to inflammation, a type of gastritis sometimes called bile reflux gastritis.

Symptoms of bile reflux

• Burning pain in the upper stomach, which can be quite severe
• Frequent heartburn
• Nausea
• Vomiting yellow or green fluid
• A bitter, rather than sour, taste in the mouth
• Occasionally a cough or hoarse voice
• In some cases, weight loss you can't explain

Bile reflux and acid reflux often happen together, which is part of why it gets missed.

What causes it?

• Gallbladder removal. People who've had their gallbladder taken out have higher rates of bile reflux.
• Stomach surgery. Including gastric bypass and other procedures that change how the stomach empties.
• Peptic ulcers. An ulcer near the bottom of the stomach can interfere with how the pyloric valve works.
• Slow or disrupted stomach emptying. When contents linger, the normal one way flow of digestion is easier to disturb.

Why antacids and acid reducers often don't solve it

Antacids and acid reducing medicines are designed to deal with stomach acid. Bile isn't acid, so reducing acid doesn't stop bile flowing back or stop it irritating the lining. If acid reflux is happening at the same time, acid medication may take the edge off part of the symptoms, which can make it look like the problem is partly solved when the bile side hasn't been addressed at all.

This is one of the clearest examples of why focusing only on acid can leave people stuck. The lining itself, and what's reaching it, matters just as much.

How it's diagnosed and managed

Bile reflux usually needs proper assessment, often an endoscopy, so a doctor can see what's happening and rule out other causes. If it's confirmed, your doctor may prescribe medicines that act on bile itself, and in more stubborn cases surgery is sometimes considered. Please don't try to self diagnose this one. If your symptoms match, book in with your GP and mention bile specifically.

Everyday habits that can help

• Eat smaller meals. Less volume means less pressure on the valves at both ends of the stomach.
• Go easier on fatty food. Fat triggers bile release, so very rich meals can make things worse.
• Stay upright after eating and finish your last meal at least three hours before bed. Our guide to reflux at night covers the sleep side in detail.
• Raise the head of your bed rather than stacking pillows.
• Limit alcohol and stop smoking. Both weaken the valves and irritate the lining.
• Look after the lining. Because bile irritates the stomach wall directly, a well supported mucus layer matters. Slippery elm and marshmallow root are mucilage rich herbs traditionally used to coat and soothe, and DGL liquorice is traditionally used to support the stomach's protective mucus.

When to get urgent help

Seek medical help promptly for vomiting blood or anything that looks like coffee grounds, black or tarry stools, difficulty swallowing, severe or worsening pain, or significant weight loss.

Supporting your stomach lining

Whatever is reaching your stomach lining, acid or bile, a lining that's well supported is better able to cope. The Advanced Gut Repair Formula combines 5g of L-glutamine with DGL, slippery elm, marshmallow root, aloe vera and Bacillus coagulans in one daily drink, designed to support the lining rather than simply reduce acid. It works alongside, not instead of, any treatment your doctor recommends.

Shop the Advanced Gut Repair Formula →

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The Gut Axis Family