5 Root Causes of Acid Reflux Most Doctors Miss
If you have been living with acid reflux, you already know the routine. The burning in your chest after meals. The sour taste that creeps up the back of your throat. The dry cough that shows up out of nowhere. You have probably tried antacids, maybe even prescription medications, and you may have been told to sleep with your head elevated or avoid spicy foods. And yet here you are, still dealing with the same symptoms.
At Naturopathic Physicians Group, we hear this story constantly. Patients come in who have been managing acid reflux for years, sometimes decades, with medications that suppress the symptoms but never address the reason they started in the first place. That is the difference between conventional medicine and naturopathic care. We do not ask how to quiet the symptom. We ask why the symptom is happening at all.
Key Takeaways
Acid reflux affects approximately 30 million people in the United States, and many cases are driven by underlying causes that standard testing does not investigate.
Low stomach acid is just as common a cause of reflux as high stomach acid, and treating the wrong one makes symptoms worse over time.
Silent reflux can damage your esophagus, sinuses, and airways without ever producing the classic heartburn sensation.
Long-term use of proton pump inhibitors like Prilosec, Prevacid, and Nexium is associated with serious health risks, including kidney disease, cardiovascular disease, and nutrient deficiencies.
Food sensitivity testing, specifically IgG blood serum testing, is one of the most effective tools for identifying the root cause of chronic acid reflux.
What Is Actually Happening When You Have Acid Reflux
Acid reflux, also known as GERD or gastroesophageal reflux disease, occurs when stomach contents travel backward up the esophagus. The esophagus is the tube that connects your mouth to your stomach, and it is not designed to handle the stomach's harsh acidic environment. When that acid reaches the esophageal lining, it causes the familiar burning sensation most people associate with reflux.
But the symptoms go beyond heartburn. Many patients with acid reflux also experience difficulty swallowing, a persistent dry cough, a sour or bitter taste in the back of the throat, a sensation of a lump in the throat, belching, and bloating. Some people have all of these symptoms. Others have only one or two and do not realize they are connected to the same underlying problem.
What makes acid reflux particularly frustrating to treat is that the symptom, the burning, the cough, the regurgitation, is not the problem itself. It is a signal. And without understanding what that signal is telling you, you can suppress it with medication indefinitely without ever resolving the actual issue driving it.
The Root Causes Most Doctors Miss
This is where conventional and naturopathic medicine tend to diverge. When you see a traditional physician for acid reflux, the focus is almost always on reducing acid production. The assumption is that too much acid is the problem. Medications like H2 blockers and proton pump inhibitors work by blocking the body's ability to produce stomach acid, which reduces symptoms in the short term.
The issue is that not all acid reflux is caused by too much stomach acid. Low stomach acid, a condition called hypochlorhydria, is actually just as common a driver of reflux, and in some patients, even more common. Here is why that matters: when your stomach does not have enough acid to properly break down the food you eat, that food sits and ferments. Gas bubbles form and rise through the esophagus, and some of those bubbles carry traces of acid with them. Even small amounts of acid are enough to irritate the esophageal lining and produce the burning sensation.
If you are treating low stomach acid with medications that further reduce acid production, you are making the underlying problem worse while temporarily masking the symptoms. This is one of the reasons so many patients feel trapped on reflux medication for years with no resolution in sight. Understanding whether you have too much or too little stomach acid is a foundational step in finding real relief.
Other root causes include hiatal hernia, a condition in which part of the stomach pushes through the diaphragm and disrupts the normal valve function between the stomach and esophagus. Gastroparesis, or delayed gastric emptying, is another driver. When your digestive system moves too slowly, food stays in the stomach longer than it should, increasing pressure and the likelihood of backflow. Opioid medications are one of the most common causes of gastroparesis and often go unrecognized as a contributing factor in a patient's reflux history.
Food sensitivities are among the most significant and most overlooked causes of chronic acid reflux. We will cover this in depth in a later section.
What Silent Reflux Is and Why It Is So Dangerous
One of the most important concepts in understanding acid reflux is silent reflux, also known as laryngopharyngeal reflux. The name captures it precisely: acid is refluxing and causing damage, but the patient does not experience the classic heartburn sensation that would normally alert them to the problem.
In silent reflux, acid travels beyond the esophagus and reaches the voice box, the throat, and sometimes the sinuses, ears, or even the lungs. Because the acid does not linger in the esophagus long enough to produce the burning sensation most people recognize, patients often go years without realizing they have reflux at all. Meanwhile, the acid is quietly damaging tissues throughout the upper airway.
Patients with silent reflux often present with a chronic dry cough that has no obvious explanation, frequent throat clearing, hoarseness, postnasal drip, or recurring sinus issues. These symptoms are often attributed to allergies, asthma, or simply stress, while the actual cause continues unchecked. By the time silent reflux produces symptoms serious enough to be evaluated through imaging or endoscopy, meaningful damage may already have occurred. Getting ahead of it through proper testing and root-cause identification protects your long-term health in ways that symptom management simply cannot.
The Risks of Long-Term Acid Suppression Medications
Most people know that antacids like Tums neutralize stomach acid in the short term. Fewer people understand what happens when acid suppression becomes a long-term strategy rather than a temporary bridge while the underlying cause is addressed.
H2 blockers, including medications like Pepcid, Tagamet, and Zantac, block histamine receptors in the stomach wall to reduce acid production. They are stronger than antacids and more effective at symptom control, but long-term use depletes nutrients that depend on stomach acid for absorption. Vitamin B12, iron, and calcium are all affected, which can lead to anemia, bone density loss, and neurological symptoms over time. Ranitidine, one of the most widely prescribed H2 blockers sold under the brand name Zantac, was recalled due to contamination with NDMA, a compound linked to stomach, bladder, colon, and prostate cancers.
Proton pump inhibitors, or PPIs, are the strongest class of acid-suppression medications. Prilosec, Prevacid, Nexium, and Protonix are among the most prescribed drugs in the United States. They are intended for short-term use, typically six to eight weeks, while the cause of reflux is investigated and treated. In reality, many patients remain on PPIs for years because they were never given a root-cause solution, and the medication was never discontinued.
Long-term PPI use is associated with a significant list of health risks, including cardiovascular disease, kidney disease, dementia, stomach cancer, anemia, chronic infections, and osteoporosis. The mechanism is straightforward. Your body needs stomach acid to absorb nutrients, maintain the health of your gut lining, and protect against harmful bacteria. When you chronically suppress acid production, you disrupt all of those functions simultaneously.
The goal of naturopathic care is not to condemn these medications. There are circumstances where short-term acid suppression is appropriate and helpful. The goal is to use that window to identify and address the root cause so that the medication is no longer necessary.
Why Food Is the Most Common Root Cause
In clinical practice, the most common underlying cause of chronic acid reflux is food. Specifically, delayed food sensitivities that most standard allergy testing does not detect.
When most people think of food allergies, they think of immediate reactions: hives, swelling, difficulty breathing. These are IgE-mediated responses, and they are what standard skin prick tests and blood panels from allergists measure. But IgE reactions represent only a fraction of how the immune system responds to food. The larger category is IgG-mediated delayed sensitivities, reactions that may not appear until hours or even days after eating the offending food.
This delay is what makes food sensitivities so difficult to identify without proper testing. A patient can eat something that is actively driving their reflux every single day and never connect the two because the reaction does not happen immediately. Traditional elimination diets are unreliable for the same reason. Without knowing exactly what your immune system is reacting to, removing foods is essentially guesswork. We have seen patients with high reactivity to cucumbers and almonds, foods most people consider completely benign. If you switched to almond milk because you are lactose intolerant, but almonds are actually your sensitivity, you have not solved the problem. You have replaced it.
The three foods that appear most consistently on IgG food sensitivity panels are dairy, gluten, and eggs. These are not universal triggers for every person, but they show up with enough frequency that they are worth investigating first. If your food allergy testing has only ever included a skin prick test, it almost certainly missed the IgG reactions that are most likely driving your symptoms.
Other dietary and lifestyle factors also contribute. Smoking weakens the lower esophageal sphincter, the valve that keeps stomach contents from moving back up. Alcohol is acidic and damages that sphincter as well. Overeating places additional pressure on the stomach and increases the likelihood of backflow, particularly when stomach acid levels are already low. Not eating within three hours of bedtime gives your body time to begin digestion before you lie down, which removes the gravitational pressure that helps keep food moving in the right direction.
Water intake is one of the simplest and most underused tools for symptom relief. Studies have shown that people with chronic acid reflux who increase their water consumption see meaningful improvement in symptoms. Water is alkaline relative to stomach acid, and drinking it helps neutralize excess acidity in the esophagus.
Testing That Gives You Actual Answers
Standard diagnostic testing for acid reflux is designed to identify what is happening, not why. An endoscopy can confirm that esophageal damage has occurred. A barium swallow can reveal structural abnormalities. These tests are valuable for diagnosis, but they do not tell you what is driving the condition in the first place.
At Naturopathic Physicians Group, we use a combination of testing approaches to build a complete picture of what is happening in your digestive system.
IgG blood serum testing measures your immune system's delayed reactions to dozens of different foods. This is the test that identifies the sensitivities that standard allergy panels miss. For patients with chronic reflux, this is often one of the first and most impactful tests we run.
The baking soda challenge test is a simple at-home assessment that can give you a rough indicator of whether your stomach acid levels are adequate. Mix one quarter teaspoon of baking soda in four ounces of water and drink it first thing in the morning before eating or drinking anything else. If you burp within five minutes, your stomach is producing adequate acid. If you do not burp, low stomach acid may be a contributing factor. This is not a clinical diagnostic test, but it is a useful starting point for a conversation with your provider.
The Heidelberg stomach acid test is considered the clinical gold standard for measuring stomach acid levels precisely. After a 12-hour fast, you swallow an electronic capsule and drink a baking soda solution. The capsule measures how your stomach responds and how quickly acid levels restore. This gives a clear and accurate picture of whether hypochlorhydria is present.
H. pylori testing is also a standard part of our evaluation. H. pylori is a corkscrew-shaped bacterium that burrows into the stomach lining, disrupting its protective barrier and contributing to ulcers. It can be tested through stool or breath, with stool testing being the more accurate of the two. The discovery that H. pylori is a primary cause of peptic ulcer disease earned a Nobel Prize in 2005, fundamentally changing how gastroenterology understands ulcers.
A gastric emptying test can identify gastroparesis by tracking how quickly food moves through your digestive system after a small meal. If movement is significantly slower than normal, this is a likely contributing factor to your reflux symptoms and changes how treatment should be approached.
Naturopathic Approaches That Support Healing
Once we understand the root cause of your reflux, treatment becomes targeted and purposeful rather than generic. The goal is not just to control symptoms but to restore the function of your digestive system so that medication is no longer necessary.
From a dietary perspective, the most important step is identifying and removing your specific food sensitivities through proper IgG testing. Beyond that, general principles that support digestive health include focusing on whole, unprocessed foods, eating smaller meals more slowly, and stopping eating at least three hours before bed.
Several supplements and herbs have meaningful clinical support for acid reflux management. Ginger is a strong first-line option during an acute flare. It soothes the digestive tract, reduces inflammation, and can help slow the movement of acid up the esophagus. Aloe vera juice, specifically unsweetened aloe vera, suppresses excess acid production and acts as a natural anti-inflammatory in the stomach lining. Look for versions without added sugar, as sugar can worsen digestive symptoms.
Deglycyrrhizinated licorice, known as DGL, is one of the most clinically well-supported herbs for acid reflux. Studies have shown it can match or outperform antacids in symptom control. It soothes the GI tract, increases protective mucus in the stomach lining, and strengthens the lower esophageal sphincter to prevent backflow. Because the glycyrrhizin has been removed, DGL does not raise blood pressure the way regular licorice root can.
L-glutamine is an amino acid that increases stomach pH, neutralizes excess acid, and strengthens the esophageal sphincter. Marshmallow root and slippery elm both coat the digestive tract and protect the mucosal lining from irritation. Slippery elm in particular is one of the most effective options during active reflux episodes and is available in capsule or powder form.
Digestive enzymes taken before meals support the proper breakdown of food and reduce the likelihood of acid backflow caused by incomplete digestion. If you have had your gallbladder removed, supplementing with digestive enzymes is especially important because your body no longer has the same capacity to support the digestive process on its own.
This content is for educational purposes only and is not medical advice. Any supplements, herbs, or therapies discussed here are for informational purposes only. Please consult a qualified healthcare provider who knows your personal history before starting any new supplement or therapy.
What the Complications of Untreated Reflux Look Like
When acid reflux is managed with symptom suppression rather than root-cause resolution, the damage does not stop. It continues beneath the surface, and in some cases progresses to serious conditions over time.
Esophagitis is the inflammation of the esophageal lining caused by ongoing acid exposure. Left untreated, it can develop into ulcers, erosions, and, in some cases, bleeding. When bleeding occurs in the upper GI tract, blood can travel downward and appear in the stool, which can lead to iron deficiency anemia if unaddressed.
Barrett's esophagus develops in approximately five percent of people with chronic reflux. The esophageal lining, unable to tolerate continued acid exposure, begins transforming its cell type to resemble intestinal tissue. This protective response, unfortunately, increases the risk of esophageal cancer significantly.
Esophageal cancer is one of the more serious potential outcomes of unaddressed chronic reflux. The five-year survival rate is approximately 20 percent, and it is the seventh most common cause of cancer death in men who develop cancer. Eosinophilic esophagitis is a more recently studied condition involving allergic inflammation in the esophageal lining. It presents with reflux, difficulty swallowing, and the sensation of food getting stuck in the throat. Esophageal strictures, or physical narrowing of the esophagus, are another potential long-term outcome.
These complications do not happen to everyone with acid reflux. But they are real possibilities when reflux is managed indefinitely through suppression rather than resolved at the source.
This is Post 2 in our Gut Health Series. If you missed Post 1, you can read The IBS Diagnosis Isn’t the Whole Story here.
Frequently Asked Questions About Acid Reflux and GERD
Is low stomach acid really a cause of acid reflux?
Yes, and it is one of the most consistently misunderstood aspects of reflux. When your stomach does not produce enough acid to break down food properly, that food begins to ferment and produce gas. Those gas bubbles carry traces of acid upward through the esophagus. Even a small amount of acid is enough to cause irritation and the classic burning sensation. Treating low stomach acid with medications that further reduce acid production worsens the underlying condition. A proper evaluation of your stomach acid levels is an important part of understanding your specific situation.
I have been on a PPI for years and cannot seem to get off it. What should I do?
This is a very common experience for patients who were never given a root-cause evaluation. PPIs are intended for short-term use while the underlying cause is identified and treated. When the cause is not addressed, patients become effectively dependent on the medication because symptoms return immediately when they stop. The answer is not to stop abruptly, which can cause a rebound increase in acid production. The answer is to identify the actual cause of your reflux, address it properly, and then work with a qualified provider to taper off medication under supervision.
What is the difference between H. pylori testing from a conventional doctor and what NPG does?
Standard H. pylori testing checks for the presence of the bacteria, which is useful. Our approach goes further. We look at the whole digestive picture, including stomach acid levels, food sensitivities, gut bacteria balance, and structural factors. Even if H. pylori is present, we want to understand the full context of why your digestive system is struggling. Treating H. pylori without addressing the other contributing factors often leads to incomplete resolution.
Could I have silent reflux even though I do not feel heartburn?
Absolutely. Silent reflux is defined by the absence of classic heartburn. If you have a chronic dry cough, frequent throat clearing, hoarseness, or recurring sinus issues, and conventional testing has not found an explanation, silent reflux is worth investigating. The acid is still causing damage even when you do not feel it, which makes evaluation and treatment especially important.
Ready to take a closer look at what your body is telling you? Dr. Steven Katz and Dr. Loreena Ryder offer personalized, root-cause evaluations for patients who are tired of being told their labs look fine.
Schedule a consultation at naturopathicgroup.com/contact
Phone: (480) 451-6161
Email: [email protected]
Location: Naturopathic Physicians Group, Scottsdale, Arizona
This content is for educational purposes only and is not medical advice. Treatment decisions should be made with a qualified healthcare provider who understands your symptoms, history, labs, and goals.
