Is it acid reflux or heartburn, and is there a difference?
You may hear acid reflux referred to as gastroesophageal reflux (GER). When it becomes more chronic or severe, it may progress into gastroesophageal reflux disease (GERD).
Acid reflux occurs when stomach acid or partially digested food flows back into the esophagus. This happens when the lower esophageal sphincter (LES)—the muscle that acts like a valve between the stomach and esophagus—relaxes or weakens. Increased abdominal pressure or delayed stomach emptying can also increase the likelihood of reflux.
What Is Heartburn?
The most common symptom of acid reflux is heartburn—a burning sensation in the chest or throat caused by stomach acid irritating the sensitive lining of the esophagus.
Other common symptoms may include:
- A tart or bitter taste in the mouth
- Pain or burning that worsens when lying down or bending over
Key Differences Between Acid Reflux, Heartburn, and GERD
- Acid reflux (GER): The process of stomach contents moving back into the esophagus
- Heartburn: The burning sensation caused by acid reflux
- GERD: A chronic, more serious form of acid reflux that happens more than twice per week and may require medical treatment
Quick Tips to Prevent Acid Reflux and Heartburn
Certain foods and habits can trigger symptoms of reflux. While triggers vary from person to person, common culprits include:
- Carbonated beverages
- Spicy foods
- Citrus fruits (lemons, oranges, grapefruit)
- High-fat meals (which lower LES pressure and slow stomach emptying)
Lifestyle tips that may help:
- Drink beverages between meals instead of during meals
- Eat smaller, more balanced portions.
- Increase fiber intake to prevent constipation and reduce abdominal pressure.
- Avoid lying down for 2–3 hours after eating.
- Keep portions moderate—large meals are more likely to trigger reflux
When to Seek Medical Care
- Occasional reflux is normal for many people.
- If you experience reflux symptoms more than twice a week, contact your healthcare provider—it may be a sign of GERD.
- If you experience chest pressure or crushing pain, call 911 immediately, as it could signal a heart attack.
FAQs
Are acid reflux and heartburn the same thing?
Not exactly. Acid reflux is the process in which stomach contents flow backward into the esophagus. Heartburn is a symptom of acid reflux, typically described as a burning sensation in the chest or throat. While heartburn is the most common symptom of acid reflux, not everyone with reflux experiences heartburn.
What is the difference between acid reflux and GERD?
Acid reflux, also called gastroesophageal reflux (GER), can occur occasionally in healthy individuals. GERD (gastroesophageal reflux disease) is a chronic condition in which reflux symptoms occur frequently, typically more than twice per week, or cause complications such as inflammation of the esophagus. GERD often requires ongoing management and, in some cases, medical treatment.
What foods are most likely to trigger reflux symptoms?
Common reflux triggers include high-fat foods, spicy foods, citrus fruits, chocolate, coffee, carbonated beverages, and alcohol. However, trigger foods vary from person to person. Keeping a food and symptom journal can help identify which foods may contribute to your symptoms.
Can lifestyle changes help reduce heartburn and acid reflux?
Yes. Many people find symptom relief by eating smaller meals, avoiding lying down for 2–3 hours after eating, maintaining a healthy weight, increasing dietary fiber, and identifying personal food triggers. Lifestyle modifications are often recommended as a first-line approach for managing mild reflux symptoms.
When should I see a healthcare provider about reflux symptoms?
You should contact a healthcare provider if reflux symptoms occur more than twice per week, worsen over time, interfere with daily activities, or are accompanied by symptoms such as difficulty swallowing, unexplained weight loss, persistent vomiting, or gastrointestinal bleeding. If you experience severe chest pain, pressure, or symptoms suggestive of a heart attack, seek emergency medical care immediately.
References
1Mayo Foundation for Medical Education and Research. (2022, May 13). Heartburn. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/heartburn/symptoms-causes/syc-20373223
2U.S. Department of Health and Human Services. (2020, July). Definition & Facts for GER & GERD - Niddk. National Institute of Diabetes and Digestive and Kidney Diseases. https://www.niddk.nih.gov/health-information/digestive-diseases/acid-reflux-ger-gerd-adults/definition-facts
3U.S. National Library of Medicine. (n.d.). Heartburn | Pyrosis. MedlinePlus. https://medlineplus.gov/heartburn.html
4Centers for Disease Control and Prevention. (2024, October 24). About heart attack symptoms, risk, and recovery. Centers for Disease Control and Prevention. https://www.cdc.gov/heart-disease/about/heart-attack.html
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