Plain water is the simplest and most reliable drink for heartburn relief. It dilutes stomach acid, washes acid back down from the esophagus, and has zero risk of making things worse. But several other beverages can go further, either buffering acid, calming inflammation, or helping your stomach empty faster so acid has less reason to splash upward.
Water: The Easiest First Step
A glass of water works by diluting the acid sitting in your stomach and physically rinsing any acid that has crept into your esophagus back where it belongs. It won’t stop acid production, but it can take the edge off a flare quickly. There’s no need to overthink the timing either. Despite the persistent idea that drinking water with meals disrupts digestion, Mayo Clinic experts confirm that water doesn’t dilute digestive fluids or interfere with how your body breaks down food. Sipping water throughout a meal is perfectly fine and may even help you feel full sooner, which means less stomach pressure from overeating.
Alkaline Water
Not all water is equal when it comes to heartburn. Naturally alkaline water with a pH of 8.8 permanently deactivates pepsin, the stomach enzyme responsible for much of the burning damage acid reflux causes. Lab research published in the Annals of Otology, Rhinology, and Laryngology found that regular tap and bottled water, which typically falls between pH 6.7 and 7.4, doesn’t affect pepsin at all. At those levels, pepsin stays stable and can be reactivated the next time acid touches it. Water at pH 8.8, however, irreversibly shuts pepsin down and also buffers hydrochloric acid far more effectively than conventional water.
Look for bottled water that lists its pH on the label. Several brands market themselves as alkaline, but you want one that actually reaches 8.8 or higher. This isn’t a replacement for other treatments if you have chronic reflux, but it’s a meaningful upgrade over tap water when heartburn strikes.
Ginger Tea
Ginger is one of the most well-supported natural options for digestive discomfort. It’s naturally alkaline and has anti-inflammatory properties that ease irritation along the digestive tract. Beyond calming inflammation, ginger supports faster gastric emptying, the process of moving food from your stomach into your small intestine. Once food clears the stomach, acid production drops because there’s nothing left to digest. That means less acid available to flow back up into your esophagus.
Try sipping ginger tea at the first sign of heartburn. You can steep fresh ginger slices in hot water for five to ten minutes or use a commercial ginger tea bag. Keep the amount moderate. Too much ginger, especially from concentrated supplements, can cause its own digestive side effects. A cup or two of tea is generally well within safe limits.
Nonfat Milk
Milk has a complicated reputation with heartburn. Full-fat milk can actually trigger more acid production because fat slows digestion and relaxes the valve between your stomach and esophagus. Nonfat milk, on the other hand, acts as a temporary buffer, forming a thin layer between your stomach lining and the acid sitting on top of it. The relief is immediate but short-lived, making it a good option for taking the edge off while you wait for other strategies to kick in.
Stick strictly to nonfat or skim varieties. Even 2% milk carries enough fat to potentially backfire. Plant-based milks like unsweetened almond or oat milk are also worth trying, as they tend to be low in fat and mildly alkaline.
Unsweetened Coconut Water
Coconut water is naturally rich in potassium and other electrolytes that promote pH balance in the body. It’s mildly alkaline, low in acid, and easy on the stomach. The key is choosing unsweetened versions. Added sugars can increase fermentation in the gut and potentially worsen symptoms. A small glass during or after a meal can complement other reflux-friendly choices without adding fat or caffeine to the mix.
Lemon Water and Apple Cider Vinegar
These two get recommended constantly online, and the logic behind them sounds appealing: despite being acidic in the bottle, they supposedly become alkaline once metabolized. For lemon water, a small amount of lemon juice mixed with warm water and honey may have a mild alkalizing effect that helps neutralize stomach acid. The operative word is small. Too much lemon juice, and you’re just pouring acid on top of acid.
Apple cider vinegar is a different story. Despite its popularity on wellness blogs, Harvard Health Publishing found zero published clinical studies supporting its use for heartburn. There’s no data on whether it helps, and no data confirming it’s safe for this purpose. Since vinegar is highly acidic (around pH 2 to 3), swallowing it undiluted can irritate an already inflamed esophagus. If you want to experiment, dilute a teaspoon in a full glass of warm water and drink it with food, but understand you’re working without a scientific net.
Drinks That Make Heartburn Worse
Knowing what to avoid is just as useful as knowing what to reach for. Several popular beverages actively promote reflux:
- Coffee and caffeinated tea. Caffeine relaxes the lower esophageal sphincter, the muscular valve that keeps stomach acid from rising. Even decaf coffee can be mildly acidic enough to irritate sensitive tissue.
- Carbonated drinks. The gas in sparkling water, soda, and seltzer expands your stomach, increasing pressure on that same valve. The carbonation itself is also slightly acidic.
- Alcohol. It relaxes the esophageal sphincter, increases acid production, and slows gastric emptying, a trifecta of reflux triggers. Wine and spirits tend to be worse than beer, but all types can cause problems.
- Citrus juice. Orange juice, grapefruit juice, and lemonade are highly acidic and can directly irritate an inflamed esophagus.
- Peppermint tea. While often recommended for general stomach upset, peppermint relaxes the esophageal sphincter and can worsen reflux specifically.
How to Get the Most Relief
What you drink matters, but how you drink also plays a role. Large volumes of any liquid at once expand the stomach and increase pressure on the esophageal valve. Sipping slowly is better than gulping a full glass. If you’re prone to nighttime heartburn, finish your last drink at least two to three hours before lying down so your stomach has time to empty.
Temperature can also make a difference for some people. Warm beverages like ginger tea or warm water with a small squeeze of lemon tend to be gentler than ice-cold drinks, which can cause the stomach muscles to contract. That said, cold water is still far better than a hot cup of coffee if those are your only choices. The priority is always choosing something low in acid, free of caffeine, and free of carbonation.