Plain water is the single best drink for acid reflux, and a few other beverages can actively help calm symptoms. The key is choosing drinks that are low in acid, low in fat, and free of caffeine, while avoiding the short list of liquids that reliably make reflux worse. Here’s what works, what doesn’t, and why.
Water: The Simplest Option
Water dilutes stomach acid, helps move food through the digestive tract, and doesn’t introduce any compounds that relax the valve between your esophagus and stomach. For most people with occasional or chronic reflux, sipping water throughout the day is the easiest way to keep symptoms in check.
Alkaline water, which has a pH of 8.8 or higher, may offer an extra edge. Pepsin, the enzyme responsible for much of the tissue damage in reflux, needs an acidic environment (below pH 4.6) to stay active. Lab research published in the Annals of Otology, Rhinology & Laryngology found that water at pH 8.8 permanently deactivated pepsin, and that even re-acidifying the water afterward didn’t bring the enzyme back. That same alkaline water had roughly eight times the buffering capacity of standard bottled water, meaning it took far more acid to push its pH back down into the danger zone. You don’t need to buy expensive brands to benefit from this. Regular tap water in most areas sits between pH 6.5 and 8.5, and plain water of any pH is still a strong default choice.
Nonfat and Plant-Based Milks
Milk has a reputation as a heartburn remedy, but the type of milk matters enormously. Whole milk’s fat content can slow stomach emptying and relax the lower esophageal sphincter, the muscular ring that keeps acid from climbing upward. That initial cooling sensation fades fast and often rebounds into worse symptoms. Nonfat (skim) milk, on the other hand, acts as a temporary buffer between your stomach lining and acid without the fat-driven rebound, according to Johns Hopkins Medicine.
Plant-based milks are another solid option. Almond milk is naturally alkaline, which helps neutralize stomach acid. Soy milk is lower in fat than whole cow’s milk, making it gentler on the valve. Oat milk and coconut milk also work well, especially unsweetened versions. The common thread: choose milks with minimal added sugar and low fat content. Flavored or sweetened varieties can introduce ingredients that trigger symptoms in some people.
Herbal Teas That Help
Not all teas are created equal for reflux. Caffeinated teas (black, green, and some oolong) can loosen the esophageal sphincter and stimulate acid production, so they’re best limited or avoided. Herbal, caffeine-free varieties are a different story.
Ginger tea is one of the most studied options. Ginger blocks certain receptor pathways in the gut that trigger nausea and slow digestion. The practical result is faster gastric emptying, meaning food and acid spend less time sitting in your stomach with nowhere to go but up. Brewing a few slices of fresh ginger root in hot water for 10 to 15 minutes gives you a simple, effective drink.
Fennel tea contains anethole, a compound in fennel oil that speeds gastric emptying in animal studies. Chamomile tea is widely used for digestive comfort, though the direct evidence for reflux specifically is limited. Many people find it soothing, and it’s unlikely to make symptoms worse.
One important exception: peppermint tea. The American College of Gastroenterology lists peppermint as a known reflux trigger because it relaxes the esophageal sphincter. If you enjoy mint flavors, this is one to skip.
Low-Acid Juices
Citrus juices (orange, grapefruit, lemon) and tomato juice are among the most common liquid triggers for reflux. They’re highly acidic and can directly irritate an already-inflamed esophagus. But not all juices fall into this category.
Carrot juice is naturally low in acid and mild on the stomach. Cucumber juice and watermelon juice are similarly gentle options with a near-neutral pH. Aloe vera juice has gained popularity as a reflux remedy. If you want to try it, start with a small amount, around two tablespoons per day, to see how your body responds. Look for products labeled “decolorized” or “purified,” as unprocessed aloe contains compounds that can act as a laxative.
Smoothies Built for Reflux
Smoothies can be excellent or terrible for reflux depending on what goes in them. The goal is high fiber, low acid, and moderate fat. Fiber is especially helpful because it binds to nitric oxide, a compound that can relax the esophageal sphincter and promote reflux. When fiber captures nitric oxide, it reduces that relaxation effect.
A reflux-friendly smoothie base starts with unsweetened almond milk, coconut milk, or coconut water. From there, good additions include bananas (low acid, high fiber), spinach, carrots, rolled oats, chia seeds, flaxseeds, and avocado for healthy fat. Natural unsweetened peanut butter adds protein without excess sugar. Avoid adding citrus fruits, tomatoes, chocolate, or large amounts of high-fat dairy. A banana-spinach-oat smoothie blended with almond milk is a reliable starting formula that most people with reflux tolerate well.
What to Avoid Drinking
Some beverages consistently make reflux worse, and cutting them is often more effective than adding new drinks to your routine.
- Coffee and caffeinated drinks. Caffeine relaxes the esophageal sphincter and stimulates acid secretion. This applies to regular coffee, energy drinks, and caffeinated sodas. Decaf coffee is somewhat better but still mildly acidic.
- Alcohol. The American College of Gastroenterology recommends stopping alcohol entirely if you have reflux. It increases acid production, irritates the esophageal lining, and weakens the sphincter.
- Carbonated beverages. The gas from carbonation expands your stomach, increasing pressure on the sphincter and making it more likely that acid escapes upward.
- Citrus and tomato juice. Both are acidic enough to irritate damaged esophageal tissue on contact.
- Chocolate-based drinks. Hot chocolate and chocolate milk contain compounds that relax the sphincter, similar to caffeine.
Timing and Temperature Tips
What you drink matters, but when you drink it can also make a difference. Drinking large volumes of any liquid with a big meal increases the total volume in your stomach, which raises pressure on the sphincter. Small sips during meals are fine. Water itself doesn’t interfere with digestion, as Mayo Clinic notes, but flooding your stomach while it’s already full of food creates the mechanical conditions for reflux.
Between meals is the ideal window for larger amounts of water, tea, or smoothies. If nighttime reflux is your main problem, try to finish your last significant drink at least two to three hours before lying down, just as you would with food. Temperature doesn’t have a strong evidence base either way, but many people find room-temperature or warm drinks more comfortable than ice-cold ones during an active flare.