The best drinks for acid reflux are plain water, low-fat or plant-based milks, and certain herbal teas. These options keep stomach acid where it belongs by avoiding the triggers that relax the muscle between your esophagus and stomach. What you drink matters just as much as what you eat when managing reflux, and a few smart swaps can make a noticeable difference in how often symptoms flare up.
Water Is the Safest Choice
Plain water is the simplest, most reliable drink for acid reflux. It dilutes stomach acid without adding fat, caffeine, or carbonation, all of which can trigger symptoms. Sipping water between meals helps wash residual acid back down into the stomach.
Alkaline water with a pH of 8.8 may offer an extra benefit. At that pH level, it helps neutralize pepsin, the digestive enzyme that damages esophageal tissue when it travels upward with refluxed acid. Regular tap water typically sits around pH 7, so alkaline water is only slightly more basic. It’s not a cure, but if you’re choosing between bottled water options, the higher pH version is worth trying.
Plant-Based Milks and Low-Fat Dairy
Full-fat dairy is one of the more common reflux triggers. The saturated fat slows digestion and relaxes the valve at the top of your stomach, giving acid more opportunity to escape upward. But you don’t have to avoid milk entirely.
Low-fat cow’s milk can actually help buffer stomach acid temporarily. Almond milk, oat milk, soy milk, and cashew milk are all good alternatives as well. They tend to be lower in fat and naturally less acidic than animal-based dairy. Unsweetened versions are preferable, since added sugars can contribute to bloating that worsens reflux. If you use milk in smoothies or cereal, switching from whole dairy to one of these options is a practical first step.
Herbal Teas That Soothe the Esophagus
Not all teas are equal when it comes to reflux. Caffeinated teas (black, green, white) can weaken the lower esophageal sphincter the same way coffee does. Herbal, caffeine-free options are a better bet.
Marshmallow root tea is one of the more effective choices. The root contains high levels of mucilage, a gel-like substance that forms a physical coating over irritated tissue in the esophagus. This barrier shields the lining from acid exposure and gives inflamed tissue a chance to heal. Slippery elm tea works the same way, producing a similar protective gel when mixed with water. Both have long histories in herbal medicine for gastrointestinal complaints.
Chamomile tea is a milder option that may reduce inflammation in the digestive tract without directly coating the esophagus. It’s gentle enough to drink before bed, which is helpful since lying down is when reflux often worsens.
Ginger Tea: Helpful but Complicated
Ginger has real anti-inflammatory properties and speeds up gastric emptying, meaning food moves out of your stomach and into the small intestine faster. A stomach that empties more quickly produces less acid and creates less pressure on the valve above it. In theory, that should reduce reflux.
The complication is that ginger also relaxes the lower esophageal sphincter, the very muscle that’s supposed to keep acid from rising into your esophagus. When that muscle relaxes at the wrong time, reflux gets worse. So ginger tea can help some people and aggravate others. If you want to try it, start with a weak brew (a few thin slices of fresh ginger steeped for five minutes) and see how your body responds. Skip it if symptoms increase.
Aloe Vera Juice
Food-grade aloe vera juice has shown promise for reflux symptoms. In a clinical trial of 79 people with GERD, those who took a small daily dose of aloe vera syrup (10 mL per day, roughly two teaspoons) experienced reduced frequency of heartburn, acid regurgitation, belching, nausea, and food coming back up. The improvements appeared within two to four weeks, and no participants dropped out due to side effects.
Aloe vera is rich in polysaccharides that form a protective barrier on the esophageal lining, similar to how marshmallow root works. If you try it, make sure you buy a product specifically labeled for internal use. Whole-leaf aloe products contain compounds that act as laxatives, which is not what you’re after.
Drinks That Make Reflux Worse
Knowing what to avoid is just as useful as knowing what to reach for.
Coffee is one of the biggest offenders. It weakens the lower esophageal sphincter significantly. In research measuring the muscle’s pressure, coffee dropped it from about 19 mmHg to 14 mmHg in healthy people, roughly a 30% reduction. In people who already had reflux, the drop was even more dramatic: from around 9 mmHg down to about 5.5 mmHg. That’s a muscle that’s barely closing at all. Even pH-neutral coffee (with the acidity removed) still caused a measurable pressure drop, which means the problem isn’t just coffee’s acidity. Caffeine itself, along with other compounds in coffee, directly weakens the sphincter.
Carbonated drinks distend the stomach with gas, increasing pressure on the sphincter and pushing acid upward. Regular sodas combine carbonation with sugar and often caffeine, hitting multiple triggers at once. Diet sodas eliminate the sugar but keep the carbonation and acidity.
Citrus juices like orange juice and grapefruit juice are highly acidic and can directly irritate an already-inflamed esophagus. Tomato juice falls into the same category.
Alcohol relaxes the lower esophageal sphincter and increases acid production simultaneously. Wine and spirits are particularly problematic, though beer’s carbonation adds its own layer of trouble.
How Much You Drink Matters Too
Volume and timing can matter as much as what’s in the glass. A study of GERD patients compared two approaches: drinking 600 mL (about 20 ounces) at each of three meals versus drinking 300 mL (10 ounces) in six smaller sittings throughout the day. The results were striking. The larger-volume group experienced 70% more reflux episodes and more than double the total acid exposure time compared to the smaller-volume group.
The reason is mechanical. A larger volume stretches the upper portion of the stomach, which increases pressure on the sphincter and triggers more frequent openings. Drinking smaller amounts more often keeps the stomach from overfilling. In practical terms, this means sipping throughout the day rather than gulping a large glass with dinner. If you tend to drink a full bottle of water with meals, try having most of it 30 minutes before eating and keeping only a few ounces at the table.
A Simple Daily Drinking Strategy
- Morning: Start with plain or alkaline water instead of coffee. If you can’t give up caffeine entirely, cold brew tends to be less acidic than hot-brewed coffee.
- With meals: Keep liquids to about 10 ounces or less per sitting. Low-fat milk or a plant-based milk works well here.
- Between meals: Sip water or herbal tea (marshmallow root, slippery elm, or chamomile) throughout the day.
- Before bed: Stop drinking large volumes at least two to three hours before lying down. A small cup of chamomile tea is fine, but a full glass of anything adds volume to your stomach right when gravity stops helping you.
Small, consistent changes in what and how you drink tend to produce better results than one dramatic overhaul. Start by replacing your worst trigger (usually coffee, soda, or alcohol) with one of the options above, and adjust from there based on how your symptoms respond.