The Lactose Link
Many individuals struggle with persistent heartburn even after using antacids, a situation that often calls for a closer examination of underlying causes.
Dr. Saurabh Sethi, a gastroenterologist with prestigious Harvard and Stanford training, points to several less obvious reasons for this ongoing discomfort. One significant contributor he frequently encounters in his practice is lactose intolerance. It's a widespread condition, with a substantial portion of the global population experiencing some level of difficulty digesting lactose. When lactose isn't properly broken down in the digestive system, it can lead to an accumulation of gas and a feeling of bloating. This increased pressure within the abdomen can subsequently exacerbate acid reflux symptoms in individuals who are particularly susceptible. Therefore, what might seem like a straightforward heartburn issue could be intricately linked to how one's body processes dairy.
H. Pylori's Role
Another frequently overlooked cause for persistent heartburn, even with antacid use, is an infection by the bacterium Helicobacter pylori. This common stomach microbe can lead to inflammation in the gastric lining, potentially disrupting the normal regulation of stomach acid production. These changes in acid dynamics can manifest as upper gastrointestinal discomfort, including symptoms that mimic or contribute to acid reflux. Dr. Sethi emphasizes that while these two factors are significant contributors, they are not the sole causes of all reflux issues. However, for individuals experiencing ongoing heartburn, investigating lactose intolerance and H. pylori infection is a crucial step in finding effective treatment and lasting relief.
Doctor's Next Steps
When persistent heartburn is the issue, Dr. Sethi offers practical clinical advice. For suspected lactose intolerance, he recommends a simple diagnostic approach: try eliminating lactose from your diet, perhaps by opting for lactose-free dairy products or plant-based alternatives, and closely monitor if your symptoms improve. If H. pylori infection is a possibility, non-invasive tests like a breath or stool test are the preferred initial step. Should these tests confirm the presence of the bacteria, appropriate treatment can then be initiated. In select instances, especially if there are concerning 'alarm symptoms' or a lack of response to initial therapies, more in-depth evaluations like an esophagogastroduodenoscopy (EGD), commonly known as an endoscopy, might be necessary.
Finding the Root
The ultimate goal, as stressed by Dr. Sethi, is to address the underlying cause of heartburn rather than just masking the symptoms. He shares that many patients have experienced significant relief from long-standing digestive issues after successfully treating an H. pylori infection. This underscores the importance of accurate diagnosis. If your heartburn continues to bother you despite consistent use of antacids, it's crucial to discuss further evaluation with your physician. The doctor's advice is clear: "Treat the root cause, not just the symptom." Persistent heartburn is not to be dismissed as a minor inconvenience; it could be a significant signal from your body that deserves attention and proper investigation.














