A 2024 cross-sectional study of 440 Lebanese adults found that 28.4% experienced heartburn symptoms, with higher stress levels independently increasing heartburn risk by 11% per stress unit. According to Gram Research analysis, the research shows that stress, fatty foods, carbonated beverages, caffeine, certain medications (NSAIDs and iron supplements), and smoking history all independently contributed to heartburn symptoms, demonstrating that acid reflux involves stress, diet, and medical factors working together.
A new study of 440 Lebanese adults found that stress, certain foods, and specific medications are major triggers for heartburn and acid reflux symptoms. Researchers discovered that people with higher stress levels were significantly more likely to experience GERD (gastroesophageal reflux disease), a common condition where stomach acid backs up into the throat. The study also identified that eating fatty foods, drinking carbonated beverages, taking certain pain relievers, and having a family history of digestive problems all increased the risk. Interestingly, being married was linked to fewer symptoms. According to Gram Research analysis, this study shows that heartburn isn’t just about what you eat—your stress levels and emotions play a real role too.
Key Statistics
A 2024 cross-sectional study of 440 Lebanese adults found that 28.4% had probable GERD symptoms, with higher perceived stress independently associated with an 11% increased odds of experiencing heartburn.
According to research reviewed by Gram, 83.2% of study participants reported moderate stress levels, with frequent consumption of fatty foods, carbonated beverages, and caffeinated drinks all independently increasing heartburn risk.
A 2024 study of 440 adults found that certain medications including NSAIDs, bisphosphonates, and iron supplements were independently associated with increased GERD symptoms, highlighting medication as a modifiable risk factor.
Research from 2024 involving 440 Lebanese adults showed that being married was associated with lower odds of heartburn symptoms, suggesting relationship status or associated lifestyle factors may influence digestive health.
The Quick Take
- What they studied: What causes heartburn and acid reflux symptoms in adults, focusing on stress, diet, medications, and personal health history
- Who participated: 440 Lebanese adults with an average age of 36 years who completed an online survey between January and September 2024
- Key finding: About 28% of participants had heartburn symptoms, and those with higher stress levels were 11% more likely to experience these symptoms. Stress, fatty foods, carbonated drinks, caffeine, certain medications, and smoking history all independently increased heartburn risk.
- What it means for you: If you struggle with heartburn, managing your stress and watching your diet may help reduce symptoms. However, this study shows correlation, not proof of cause-and-effect, so talk to your doctor about your specific situation.
The Research Details
Researchers asked 440 adults in Lebanon to complete an online questionnaire about their heartburn symptoms, stress levels, eating habits, medications, and medical history. They used two standard measurement tools: the GERDQ scale to identify heartburn symptoms and the PSS-10 scale to measure perceived stress. The study collected all this information at one point in time (January through September 2024), which is called a cross-sectional design. After gathering the data, researchers used statistical analysis to identify which factors were most strongly connected to heartburn symptoms, while accounting for other variables that might influence the results.
This research approach is important because it captures real-world patterns in how stress, diet, and medications relate to heartburn in a specific population. By measuring multiple factors at once, researchers could identify which ones independently contribute to symptoms, rather than just looking at one factor in isolation. This helps doctors and patients understand that heartburn is complex and involves lifestyle, emotions, and medical factors working together.
The study used validated, standardized measurement tools (GERDQ and PSS-10) that are recognized in medical research, which strengthens reliability. The sample size of 440 participants is reasonably large for this type of study. However, because this is a cross-sectional study, it shows relationships between factors and heartburn but cannot prove that one causes the other. The study was conducted online, which may have excluded people without internet access. Results are specific to Lebanese adults and may not apply equally to other populations.
What the Results Show
Nearly 3 out of 10 participants (28.4%) reported probable GERD symptoms. The most striking finding was that stress played an independent role: for every unit increase on the stress scale, the odds of having heartburn symptoms increased by 11%. This means that people with higher stress were consistently more likely to experience heartburn, even after accounting for diet and medications.
Diet emerged as a major factor. People who frequently ate fatty or fried foods, drank carbonated beverages, or consumed caffeinated drinks all had significantly higher rates of heartburn symptoms. The study found that these dietary habits independently contributed to symptoms, meaning they mattered even when stress and other factors were considered.
Medication use also played a role. Certain over-the-counter pain relievers (NSAIDs like ibuprofen), bone-strengthening medications (bisphosphonates), and iron supplements were all associated with increased heartburn symptoms. Former smokers (but not current smokers in this sample) had higher rates of symptoms. Interestingly, having a personal or family history of digestive problems significantly increased heartburn risk, suggesting a genetic or familial component.
One unexpected finding was that being married was associated with lower odds of heartburn symptoms. This could reflect differences in lifestyle, stress management, or health behaviors between married and unmarried individuals, though the study doesn’t explain why. The study also found that most participants (83.2%) reported moderate stress levels, with an average stress score of 19.74 out of a possible range, indicating that stress is common in this population.
This research aligns with existing medical knowledge that stress, diet, and medications influence heartburn. Previous studies have shown that stress can increase stomach acid production and make the digestive system more sensitive. The finding that fatty foods and caffeine trigger symptoms matches what doctors have long recommended to heartburn patients. However, this study is one of the first to comprehensively examine all these factors together in a Lebanese population, providing culturally specific evidence.
This study has several important limitations. Because it’s cross-sectional, it captures a snapshot in time and cannot prove that stress causes heartburn—only that they occur together. The online survey method may have excluded older adults or people without internet access, potentially skewing results. The study relied on self-reported information, which can be less accurate than medical tests or doctor evaluations. Results apply specifically to Lebanese adults and may not generalize to other populations with different diets, stress patterns, or healthcare systems. Finally, the study didn’t measure actual stomach acid levels or use endoscopy (a camera test), so diagnoses were based on symptoms alone.
The Bottom Line
If you experience heartburn, consider these evidence-based approaches: (1) Manage stress through relaxation techniques, exercise, or counseling—this study shows stress independently contributes to symptoms. (2) Reduce intake of fatty/fried foods, carbonated drinks, and caffeine. (3) Review medications with your doctor, especially pain relievers and supplements. (4) If you smoke, quitting may help. (5) See a doctor if symptoms persist, especially if you have a family history of digestive problems. Confidence level: Moderate—this study shows strong associations but cannot prove cause-and-effect.
Anyone experiencing regular heartburn or acid reflux should pay attention to these findings. People taking NSAIDs, bisphosphonates, or iron supplements should be especially aware. Those under high stress may benefit from stress-reduction strategies. However, this study is specific to Lebanese adults, so results may vary for other populations. Always consult your doctor before making major changes to diet or stopping medications.
Dietary changes and stress reduction may provide relief within days to weeks for some people, though individual responses vary. Medication-related heartburn may improve once you stop taking the triggering medication (under doctor supervision). Long-term management typically requires ongoing lifestyle modifications rather than one-time fixes.
Frequently Asked Questions
Can stress actually cause heartburn and acid reflux?
Research shows stress is independently linked to heartburn symptoms. A 2024 study of 440 adults found higher stress increased heartburn odds by 11%. Stress may increase stomach acid production and make your digestive system more sensitive, though individual responses vary.
What foods trigger heartburn the most according to recent research?
A 2024 study identified fatty or fried foods, carbonated beverages, and caffeinated drinks as independent heartburn triggers. These foods were associated with symptoms even when accounting for stress and medications, making them reliable dietary targets for symptom management.
Can over-the-counter pain relievers like ibuprofen cause heartburn?
Yes. A 2024 study of 440 adults found NSAIDs (like ibuprofen), bisphosphonates, and iron supplements were independently associated with increased heartburn symptoms. If you take these regularly and experience heartburn, discuss alternatives with your doctor.
How long does it take to see improvement if I reduce stress and change my diet?
Individual timelines vary. Dietary changes may provide relief within days to weeks. Stress reduction benefits may take longer as you build new habits. A 2024 study shows both factors independently matter, so combining approaches may work better than changing just one.
Is heartburn hereditary or genetic?
A 2024 study found that having a personal or family history of digestive problems significantly increased heartburn risk, suggesting a genetic component. However, lifestyle factors like stress and diet also independently contributed, meaning both nature and nurture play roles.
Want to Apply This Research?
- Log daily stress levels (1-10 scale), meals eaten, and heartburn symptoms (none/mild/moderate/severe) to identify your personal triggers. Track which specific foods and stressful situations correlate with symptom flare-ups.
- Use the app to set reminders for stress-reduction activities (5-minute breathing exercises, short walks) during high-stress periods. Create a personalized food trigger list and get alerts when you’re about to log trigger foods, prompting you to consider alternatives.
- Review weekly patterns to identify your top 3 stress triggers and top 3 food triggers. Adjust one variable at a time (e.g., reduce caffeine for one week, then add stress management the next week) to see what works best for your body. Share monthly reports with your doctor to track progress.
This article summarizes research findings and is not medical advice. Heartburn and GERD can have serious underlying causes and require professional evaluation. If you experience frequent heartburn, persistent symptoms, difficulty swallowing, or chest pain, consult a healthcare provider immediately. Do not stop taking prescribed medications without doctor approval. This study was conducted in Lebanese adults and results may not apply equally to other populations. Always discuss dietary changes, stress management strategies, and medication concerns with your doctor before making changes.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.