If you have GERD, certain foods and drinks can relax the valve between your stomach and esophagus, slow digestion, or directly irritate already-sensitive tissue. The biggest categories to limit or avoid are high-fat foods, acidic fruits and tomatoes, chocolate, peppermint, carbonated drinks, and spicy foods. But the details matter, and some commonly blamed triggers (like coffee) are more nuanced than you might expect.
High-Fat and Fried Foods
Fat is the single most consistent dietary trigger for reflux. Fried food, fast food, pizza, bacon, sausage, cheese, and processed snacks like potato chips all slow stomach emptying. The longer food sits in your stomach, the more acid your body produces and the more pressure builds against the valve at the top of your stomach (the lower esophageal sphincter, or LES). High-fat meals also cause that valve to relax, making it easier for acid to escape upward into your esophagus.
This doesn’t mean you need to eliminate all fat. The issue is volume and type. A handful of almonds is different from a plate of cheese fries. Lean proteins like chicken breast, fish, and turkey are generally well tolerated. If you’re cooking with oil, smaller amounts of olive oil tend to cause fewer problems than deep-frying or using butter-heavy sauces.
Tomatoes and Citrus Fruits
Acidic foods irritate the esophageal lining directly, which is already inflamed or sensitive when you have GERD. Tomatoes are one of the worst offenders, and the problem extends to everything made from them: marinara sauce, salsa, ketchup, and tomato paste. Citrus fruits like oranges, grapefruits, lemons, and limes have the same effect. Even citrus juice on an otherwise mild meal can be enough to trigger a flare.
If you love fruit, lower-acid options tend to work better. Bananas, melons, apples, and pears are less likely to cause irritation. For cooking, you can often replace tomato-based sauces with pesto, broth-based sauces, or roasted vegetable purees that don’t carry the same acid load.
Chocolate and Peppermint
These two get grouped together because they cause the same problem through different chemistry. Chocolate contains a compound called methylxanthine (similar to caffeine) that relaxes the lower esophageal sphincter. That relaxation lets stomach acid flow back into the esophagus. The effect is dose-dependent, so a small square of dark chocolate may not bother you, but a rich chocolate dessert likely will.
Peppermint relaxes the same valve. This includes peppermint tea, peppermint candies, and peppermint oil. Garlic and onions have a similar relaxing effect on the sphincter, which is why heavily seasoned dishes can be a problem even when they aren’t spicy. If you drink herbal tea to soothe your stomach, chamomile or ginger are safer choices than peppermint.
Spicy Foods
Capsaicin, the compound that makes chili peppers hot, doesn’t appear to change how quickly your stomach empties or alter your stomach’s acid levels. What it does is sensitize the nerve endings in your esophagus directly. In one study, capsaicin brought on peak heartburn roughly two hours faster than a non-spicy meal (120 minutes versus 247 minutes). The burn you feel isn’t from more acid; it’s from your esophageal nerves reacting more intensely to the acid that’s already there.
The practical takeaway: if your esophagus is already irritated from frequent reflux, spicy food will make you feel it sooner and more intensely. Chili powder, cayenne, black pepper, and white pepper are all common culprits. During a flare, bland seasoning with herbs like basil, oregano, and thyme lets you add flavor without triggering that nerve response.
Carbonated Beverages
Carbonation creates gas in your stomach, which increases pressure and forces the LES open. Research shows that all carbonated drinks, regardless of whether they contain sugar or caffeine, reduce the strength of the lower esophageal sphincter by 30 to 50% for a sustained period of about 20 minutes. In 62% of cases studied, the reduction was severe enough to push the sphincter into a range normally considered incompetent, meaning it can’t hold back acid effectively. Tap water, by contrast, caused no reduction at all.
This applies to soda, sparkling water, seltzer, and beer alike. The bubbles themselves are the problem. If you’re used to drinking carbonated water throughout the day, switching to flat water, or water infused with cucumber or non-citrus fruit, removes a trigger you might not have suspected.
Coffee: Less Clear Than You Think
Coffee is on nearly every GERD “avoid” list, but the evidence is surprisingly weak. A large meta-analysis covering over 122,000 patients found that GERD was only marginally more common among coffee drinkers than non-drinkers (about 35% versus 31%). When researchers looked specifically at people drinking one or more cups daily, there was no statistically significant increase in GERD risk. No specific consumption threshold was identified where coffee clearly worsened the condition.
The researchers described the association as “of unclear clinical significance.” What this means for you: coffee may bother some people with GERD, but it’s not a universal trigger the way high-fat food or carbonation is. If you notice your symptoms worsen after coffee, it makes sense to cut back. But if coffee doesn’t seem to affect you, the evidence doesn’t support eliminating it preventively. Drinking it on an empty stomach or with a high-fat creamer may matter more than the coffee itself.
Alcohol
Alcohol relaxes the lower esophageal sphincter and can increase stomach acid production. Medical guidelines typically recommend that people with symptomatic GERD either avoid alcohol or limit it to moderate amounts. That said, the research on alcohol and GERD is mixed, with studies producing contradictory results depending on the type of alcohol, the amount consumed, and the population studied.
In practice, certain types tend to cause more trouble. Red wine and beer are frequently reported as triggers, with beer carrying the added problem of carbonation. Spirits in small amounts may be better tolerated, though mixing them with citrus juice or soda reintroduces other triggers. If you drink, paying attention to which types and quantities affect you personally is more useful than following a blanket rule.
Eating Patterns That Matter
What you eat matters, but how and when you eat plays a surprisingly large role. Large meals stretch the stomach and put pressure on the LES regardless of what’s on the plate. Eating within two to three hours of lying down gives acid an easy path into your esophagus once gravity is no longer helping keep it down. Late-night snacking, even with “safe” foods, is a common and overlooked trigger.
Smaller, more frequent meals reduce the total volume in your stomach at any given time. Eating slowly gives your stomach a chance to begin emptying before you add more food. These habits won’t eliminate GERD on their own, but they can meaningfully reduce how often food choices become a problem. Many people find that a food they can tolerate in a small portion at lunch becomes a trigger when eaten in a large portion before bed.