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title: "Is L-Glutamine good for treating heartburn?"
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canonical_url: "https://www.drdanwool.com/blog/lglutamine"
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Written and  Medically reviewed by [Dr. Dan Wool, NMD](https://www.linkedin.com/in/drdanwool/) , Arizona-licensed Naturopathic Physician and

 Gastroenterology Specialist

 Updated: February 23, 2026

Summary: 

- What is acid reflux? Acid reflux, or GERD, occurs when a weakened lower esophageal sphincter (LES) allows stomach acid to flow back into the esophagus. This causes common symptoms like heartburn, regurgitation, chest pain, and nausea. Triggers often include large or fatty meals, specific food sensitivities, smoking, alcohol, and conditions like obesity or pregnancy which increase abdominal pressure.
- How is acid reflux usually  treated? Conventional treatment focuses on lifestyle and diet modifications, such as weight management and avoiding trigger foods. Medications are also common, ranging from over-the-counter antacids and H2 blockers to stronger prescription Proton Pump Inhibitors (PPIs). These medications primarily aim to reduce stomach acid and alleviate symptoms, with some also helping to heal the esophageal lining.
- Can L-glutamine help acid reflux? L-glutamine, an amino acid vital for tissue repair, is a promising natural remedy. It may help by restoring the integrity of the stomach and esophageal lining damaged by acid. While large-scale scientific evidence is still emerging, anecdotal and clinical observations suggest it can help alleviate symptoms, repair the mucosal lining, and support overall gut health for those suffering from GERD.
- Is L-glutamine safe? Generally considered safe, L-glutamine is naturally produced by the body. However, it's crucial to stick to recommended dosages (typically 5-10g daily) to avoid rare side effects like bloating or nausea. Individuals with liver disease, bipolar disorder, or who are pregnant or breastfeeding should consult a healthcare provider, like a naturopathic doctor, before starting any new supplement to ensure it's appropriate for their specific health needs.

## What causes acid reflux?

The valve at the bottom of your esophagus - called the lower esophageal sphincter (or LES) -usually keeps undigested matter from coming back up. It’s a circular muscle that opens when you swallow and closes to keep food and liquid in your stomach. It normally opens a bit only to let gas bubbles out, such as when you’re burping or have hiccups.

When your Lower Esophageal Sphincter (LES) weakens or relaxes too much, it allows stomach acid to flow back up into the esophagus. This reflux of acid can cause discomfort and other symptoms, but it’s important to know that occasional acid reflux is common and not always a cause for concern. For example, your LES naturally opens when you lie down after a large meal, which may lead to temporary acid reflux.

However, if you experience these symptoms frequently—such as persistent heartburn, regurgitation, chest discomfort, or difficulty swallowing—it could be a sign of Gastroesophageal Reflux Disease (GERD). GERD is a chronic condition where the LES does not function properly over time, leading to ongoing acid exposure that can irritate and damage the lining of your esophagus.

Recognizing the difference between occasional reflux and GERD is crucial for managing your digestive health effectively. If you’re experiencing frequent or severe symptoms, consulting with a healthcare professional can help you get the right diagnosis and treatment plan to restore comfort and protect your esophagus.

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Many factors can contribute to weakening the LES, temporarily or permanently, and leading to [acid reflux or GERD.](/acid-reflux)

## What are the most common symptoms of acid reflux and GERD?

- Regurgitation: the sensation of food, acid, or liquid moving backward from the stomach into the throat, often accompanied by a sour taste;
- Heartburn : also known as acid indigestion, this is a burning sensation caused by acid irritating the esophagus, typically felt in the chest (sternum) or lower down near the stomach;
- Nausea: The backwash of acid can create a feeling of nausea or loss of appetite, a feeling very similar to indigestion;
- Chest Pain/Tightness: pain in the esophagus that seems like heart pain due to the shared nerve pathways. Because of the pain and location, it can be mistaken for a heart  attack and in fact is one of the most common reasons people visit the ER.
- Sore Throat/Hoarseness: when acid reaches the throat it can cause soreness or difficulty swallowing mainly at night or when lying down; if it's been going on awhile, some patients can develop a hoarse voice;
- Asthma-like Symptoms: when acid particles enter the airways, causing them to contract, you may experience chronic coughing, wheezing, and shortness of breath.

## What can make acid reflux worse? 

- Certain factors, such as lying down, eating large or fatty meals, smoking, drinking alcohol, or bending over can exacerbate the above symptoms. 
- [Food](/blog/how-igg-and-iga-food-sensitivity-testing-can-help-manage-gastritis-gerd-and-ibs) [sensitivities](/blog/how-igg-and-iga-food-sensitivity-testing-can-help-manage-gastritis-gerd-and-ibs)   - the most common cause of acid reflux we see in clinic is a sensitivity  to a certain food(s) - this can create - or if the stomach and/or esophagus are already irritated - exacerbate  acid  reflux. 
- Pregnancy can lead to temporary acid reflux since the pressure and volume of the baby in your abdomen can push, stretch, and weaken the muscles in the diaphragm that support your LES. This can be further exacerbated by pregnancy hormones encouraging your LES to relax. 
- Obesity also increases the volume and pressure in your abdomen and affects your LES similarly to how pregnancy does. If you’re overweight for many years, this can lead to permanent weakening of the muscles, to hiatal hernia (the stomach bulging into the chest). Fatty tissue also raises estrogen levels which contributes to further LES relaxation.
- Smoking is never good for your health and to make things worse, tobacco smoke relaxes your LES, slows down digestion, and increases acid production. This is true also for passive smokers exposed to second-hand smoke. Chronic coughing caused by smoking, or other reasons, opens your LES further. 
- Anatomic abnormalities, autoimmunity, medication side effects -  GERD can also be caused by congenital defects, including hernias, connective tissue diseases, abdominal or chest surgery, scleroderma, medications that have a relaxing effect on the LES, and other environmental and lifestyle factors.

## What Is L-glutamine?

Glutamine is one of the most abundant amino acids in the body and a vital building block for proteins, including human tissue along  the GI tract. L-glutamine is the purest form of the amino acid glutamine that can be taken orally.

Glutamine is one of the 20 amino acids that form proteins and is classified as 'non-essential' meaning your body can produce it on its own, unlike essential amino acids that cannot be produced by your body (you must consume them).

A healthy human's body under normal circumstances is capable of synthesizing sufficient amounts of L-glutamine to meet its needs.

In recent years, supplemental L-glutamine has been hailed for its potential benefits in supporting the digestive tract’s health and integrity. It aids in the repair and healing of damaged tissues which can help long-term [GERD](/acid-reflux) sufferers who might have damage to the lining of the esophagus and stomach with their recovery.

## What do doctors tell people with acid reflux? 

If you’re suffering from occasional acid reflux or have a chronic condition (GERD) your physician will likely recommend a combination of lifestyle changes and medications to manage the symptoms of the condition. They will often perform endoscopy -- sending a camera down your esophagus to investigate the tissue in esophagus, stomach and duodenum (transitional area from stomach to small intestine). In more rare or severe cases, surgery might be an option.

Primary care medical doctors and gastroenterologists typically make general lifestyle recommendations when it comes to reflux, including:

- Weight management. You must manage your weight within healthy limits - being overweight or obese can lead to acid reflux or GERD due to the pressure of the abdomen on the chest and the production of estrogen by fatty tissues which might cause the esophagus’ sphincter to relax.
- Diet. Your eating habits and your diet are very important even if you’re within normal weight limits since certain foods (fried, fatty, spicy, acidy) can exacerbate or cause acid reflux, while others (whole grains, non-citrus fruits, vegetables, and lean meats) are pretty safe and will help you stay fit and healthy. Doctors offices will usually provide you a list of c ommon offending  foods to avoid.
- Smoking or alcohol cessation. Smoking and alcohol are also to be avoided, not only because they might cause or worsen acid reflux but for your general health and well-being. 

## What medications are recommended  for  acid reflux?

Are you experiencing occasional acid reflux symptoms? Over-the-counter options like antacids, H2 blockers, and proton pump inhibitors (PPIs) can provide relief. However, if your symptoms persist or worsen, it may be time to consult your doctor. They can recommend stronger doses of PPIs like pantoprazole to help manage your acid reflux effectively. Dont let persistent symptoms hold you back from feeling your best - talk to your doctor today to find the right treatment for you.

They treat the symptoms of GERD better than H2 blockers. An added benefit is that they might assist in healing the lining of the esophagus for many people with GERD. PPIs can be purchased either OTC or prescribed by your doctor. If a longer-term treatment is necessary. They are generally safe and effective and don’t have many side effects. However, more research is needed to ascertain their safety and efficacy long-term. 

## What the science says about  L-glutamine for acid reflux treatment

The role that L-glutamine plays in treating acid reflux is complex and it needs to be researched further. Its positive reputation for GI healing largely comes from  years and anecdotal and clinical evidence with patients, vs. great study. That said, a  couple research studies were interesting : 

- Promise  with esophagitis. Animal models make up the bulk of L-glutamine studies with GI conditions and cannot be adequately  relied upon. However, in one study, esophagitis was induced in rats and various treatments were tested, including L-glutamine [1]. While positive changes were observed , rats can't exactly tell us how they're feeling!
- H. Pylori eradication. The number of cases successfully treated with L-glutamine is increasing and it is also proven to be beneficial for other conditions of the digestive system such as H. Pylori Gastritis [2]. H. Pylori is normal flora what lives in our gut lining but can become pathogenic in inflammatory conditions  like  gastritis and GERD; it is thought to cause peptic ulcer disease (PUD).

The above study illustrated a single case, therefore it’s important to consult with a naturopathic physician  well-versed in nutritional  supplements and GI interventions who can create a custom treatment plan for your specific case. A number of factors including dosing, combination therapies and the severity of the GI condition need to be weighed when using glutamine.

## How can L-Glutamine help Acid Reflux and GERD?

### Benefits of L-Glutamine for acid reflux/GERD

- Symptom relief: L-glutamine, may not cure but it will help alleviate GERD symptoms significantly;
- Cell Lining Restoration: It aids in restoring cell linings by providing essential nutrients and improving muscular function;
- Mucosal Lining Repair: L-glutamine can assist in repairing mucosal linings damaged by stomach acids;

### Potential risks of taking L-Glutamine for acid reflux/GERD

- Dose makes the medicine. Glutamine is generally safe as it’s present in the body. Always adhere to the recommended doses of no more than 40 grams per day (5-10g are  typical). 
- Potential  side effects - these are very rare and might include bloating, nausea, dizziness, heartburn, and stomach pain;
- Pregnancy and breastfeeding concerns - there isn’t enough evidence to show if glutamine is safe to take for people who are pregnant or breastfeeding. It’s best to err on the side of caution and avoid it;
- Avoid if you have liver or bipolar disease - glutamine can convert to glutamate, an excitatory  neurotransmitter, which can interfere with certain medications and  treatments.

## Frequently Asked Questions about Using L-Glutamine for Acid Reflux/GERD

### 1. I've been taking PPIs (like omeprazole or pantoprazole) for years. Can L-glutamine help me get off these, and how do I transition safely?

This is one of the most common concerns I hear, and yes, L-glutamine can be part of a strategic plan to wean off PPIs. However, this requires careful planning -- you can't just stop PPIs cold turkey.  Long-term PPI use creates a dependency cycle: they reduce stomach acid (which you actually need for digestion), weaken your lower esophageal sphincter over time, and can cause (painful) rebound hyperacidity when you try to stop abruptly.

- The key is addressing why you developed reflux in the first place -- often [food sensitivities,](/blog/foodsensitivity2) [stress affecting digestion](/blog/nervoussystemmismatch), hiatal hernia, or eating habits. A typical naturopathic approach involves:
- [Identifying and removing trigger foods](/blog/how-igg-and-iga-food-sensitivity-testing-can-help-manage-gastritis-gerd-and-ibs);
- Starting L-glutamine (5-10g daily) along with other gut-healing nutrients like [DGL (licorice), slippery elm](/blog/slippery-elm), and zinc carnosine to repair the esophageal lining;
- Supporting stomach acid production (contrary to what you'd think, low stomach acid often causes reflux), and;
- Very gradually tapering PPIs over 4-8 weeks under doctor's care while monitoring symptoms.

Some patients need to stay on a low dose PPI temporarily while healing occurs. Work with a provider experienced in PPI withdrawal—rebound reflux is real and discouraging if not managed properly.

### 2. How much L-glutamine should I take for GERD, and how long before I see results? Is this something I'll need to take forever?

Typical therapeutic dosing of L-Glutamine for GERD ranges from 5-10 grams daily, usually divided into 2-3 doses (morning on empty stomach and before bed are common). Some practitioners use higher doses (up to 15-20g daily) for severe esophagitis, but this should be medically supervised.

As for timeline: this isn't a quick fix like popping an antacid. L-glutamine works by actually healing and repairing damaged tissue in your esophagus and stomach lining—a process that takes time. Most patients notice subtle improvements in symptoms within 2-4 weeks (less burning, reduced frequency), but significant healing typically requires 8-12 weeks of consistent use.

The good news: you likely won't need it forever. Once your gut lining is healed and root causes are addressed (stress management, proper meal timing, food sensitivities eliminated), many patients can reduce or discontinue L-glutamine and maintain results. Some patients continue a lower maintenance dose (2-5g daily) long-term as part of their wellness routine, especially if they have chronic gut issues beyond just reflux, but again, the goal is eventually to be off everything.

### 3. What is the best way to take L-glutamine? 

The best form is generally a powder. You'll add a 5 gram scoop to water, mix it up and drink it. It will make the water look a little cloudy but is usually tasteless. 

### 4. I tried L-glutamine before and it didn't help my reflux at all. What am I doing wrong, or does it just not work for some people?

Healing acid reflux/GERD can be incredibly frustrating, and there are several reasons L-glutamine alone might not have worked:

- L-glutamine is a healing agent, not a symptom suppressor. If you're still eating trigger foods, lying down after meals, or under chronic stress, you're basically re-injuring tissue faster than it can heal. It's like trying to heal a cut while constantly reopening it.
- Timing and dosing matter: taking 1-2g once daily won't move the needle. (It's often in this dose as an ingredient in herbal gut healing mixtures). Most patients need therapeutic doses (5-10g) consistently for weeks.
- L-glutamine works best as part of a comprehensive protocol, not in isolation.  This is really important. Effective GERD treatment requires multiple approaches: removing food triggers (often gluten, dairy, spicy/acidic foods), supporting stomach acid production (if low acid is causing reflux), healing the mucosa (example: L-glutamine + [DGL](/blog/is-licorice-dgl-good-for-acid-reflux) + [zinc carnosine](/blog/zinc-carnosine) + [aloe vera](/blog/is-aloe-vera-good-for-acid-reflux)), addressing stress/vagal tone, and sometimes structural issues like hiatal hernia adjustment.
- Finally, the diagnosis causing the reflux symptoms matters. If you have active H. pylori infection, severe esophagitis, or [Barrett's esophagus](/blog/barrett-s-esophagitis-causes-symptoms-treatments-and-when-to-seek-medical-help), you need more aggressive treatment first before glutamine can be effective. A comprehensive stool test and upper endoscopy might reveal underlying issues preventing healing.

## The Bottom Line on L-Glutamine for Acid Reflux / GERD

Understanding the causes and symptoms of [acid reflux and GERD](/acid-reflux), as well as their triggers, is crucial for holistic management. L-glutamine is a potential naturopathic remedy that may help as part of a treatment plan. It’s important to always consult with a healthcare provider before starting any new therapy. With new research emerging regularly, you can trust a [holistic,](/blog/what-is-the-difference-between-naturopathic-and-functional-medicine-doctors) naturopathic or functional medicine doctor to be informed and to provide the best options for your specific needs.

Find out about other common natural and herbal remedies that support gut health:

- [Slippery elm for acid reflux](https://drdanwool.com/blog/slippery-elm)
- [Deglycyrrhizinated Licorice (DGL) for acid reflux](https://drdanwool.com/blog/is-licorice-dgl-good-for-acid-reflux)
- [L-Glutamine for acid reflux](https://drdanwool.com/blog/lglutamine)
- [Marshmallow (Althea off.) for acid reflux](https://drdanwool.com/blog/marshmallow)
- [Aloe Vera for acid reflux](https://drdanwool.com/blog/is-aloe-vera-good-for-acid-reflux)

About the Author

## Dr. Dan Wool, NMD

Dr. Dan Wool is a naturopathic doctor who specializes in gastroenterology, hormones and men's health in Scottsdale, Arizona. [Set up a free 15-minute discovery call with Dr. Wool today! ](https://drdanwool.com/booking)

[Read more about Dr. Wool's Gut Health Journey](/about)

## References:

[[1]](https://onlinelibrary.wiley.com/doi/10.1155/2014/532594) [Koji Takeuchi, Kenji Nagahama, Animal Model of Acid-Reflux Esophagitis: Pathogenic Roles of Acid/Pepsin, Prostaglandins, and Amino Acids, 02 February 2014, https://onlinelibrary.wiley.com/doi/10.1155/2014/532594 ](https://onlinelibrary.wiley.com/doi/10.1155/2014/532594)

[[2] Balaji O, Amita P, L-GLUTAMINE ERADICATES HELICOBACTER PYLORI GASTRITIS: A NOVEL CASE REPORT, Received: 25 March 2017, Revised and Accepted: 07 July 2017, Vol 10, Issue 10, 2017 https://www.researchgate.net/publication/320147282_L-glutamine_eradicates_helicobacter_pylori_gastritis_A_novel_case_report](https://www.researchgate.net/publication/320147282_L-glutamine_eradicates_helicobacter_pylori_gastritis_A_novel_case_report)