The fastest way to stop indigestion is to take a liquid antacid, which begins neutralizing stomach acid within minutes of swallowing. If you don’t have one handy, a half teaspoon of baking soda dissolved in four ounces of water works as an immediate substitute. Beyond that, simple changes to your posture and what you avoid eating in the next hour can keep symptoms from coming back.
Liquid Antacids Work Fastest
Liquid antacid suspensions (the kind you drink from a bottle or a single-dose packet) neutralize acid faster than chewable tablets. Tablets need to be thoroughly chewed and still don’t mix with stomach acid as effectively as a liquid does. If you’re choosing between the two at a pharmacy or in your medicine cabinet, grab the liquid.
These products contain ingredients like calcium carbonate or magnesium hydroxide that chemically neutralize the acid already sitting in your stomach. Relief typically starts within a few minutes because the reaction is almost immediate on contact. By contrast, acid-reducing pills like famotidine take a different approach: they block your stomach from producing new acid, which means you’re waiting about an hour before symptoms ease up. Famotidine is a better choice for preventing indigestion before a big meal, but it’s not the fastest fix when you’re already uncomfortable.
The Baking Soda Shortcut
Plain sodium bicarbonate (baking soda) is one of the oldest and most accessible antacids. Dissolve half a level teaspoon in half a glass of water and drink it. It neutralizes acid on contact, producing a noticeable reduction in that burning, bloated feeling within minutes.
There are limits, though. Adults under 60 should take no more than six half-teaspoon doses in 24 hours, spaced at least two hours apart. Adults 60 and older should cap it at three doses in 24 hours. Baking soda is very high in sodium, so it’s a quick fix, not a daily habit.
Stand Up and Walk Around
If you’ve been sitting hunched over a desk or lying on the couch, your posture may be making things worse. Slouching compresses your abdomen and puts pressure on the valve between your esophagus and stomach, making it easier for acid to push upward.
Standing up straight and taking a short walk uses gravity to your advantage. It encourages your stomach to empty its contents downward into the small intestine rather than letting acid splash back up into your esophagus. Even five to ten minutes of gentle walking after a meal can make a noticeable difference. If you need to sit, keep your back straight, your shoulders relaxed, and your feet flat on the floor to reduce pressure on your abdomen.
If indigestion hits at night, lying on your left side is the best position. Your stomach curves in a way that keeps acid pooled away from the valve to your esophagus when you’re on your left. Elevating your head and upper body by six to eight inches (using a wedge pillow or bed risers, not just extra pillows) adds gravity to the equation.
Ginger Can Speed Up Digestion
Ginger isn’t just folk medicine. In a controlled study published in the World Journal of Gastroenterology, participants who took 1.2 grams of ginger root powder saw their stomachs empty significantly faster: the half-emptying time dropped from about 16 minutes with a placebo to about 12 minutes with ginger. That faster emptying means less food sitting in the stomach pressing against the esophageal valve, and less opportunity for acid to cause trouble.
You can get this effect from ginger tea (steep a few thin slices of fresh ginger in hot water for five minutes), ginger chews, or ginger capsules. Avoid ginger ale, which is usually flavored artificially and contains carbonation that can increase bloating.
Stop Feeding the Problem
While you’re dealing with active indigestion, certain foods and drinks will make it worse because they relax the muscular valve at the top of your stomach. Once that valve loosens, acid flows freely into your esophagus.
- Chocolate contains a compound called methylxanthine (similar to caffeine) that directly relaxes the valve.
- Coffee and caffeinated drinks relax the same valve, whether the coffee is regular or decaf.
- Peppermint is a potent valve relaxer despite its reputation as a digestive aid. Skip the after-dinner mint.
- Garlic and onions also trigger relaxation of the valve, especially when raw.
Fatty and fried foods slow stomach emptying, which keeps acid production high for longer. If you’re mid-episode, the best thing you can put in your stomach is plain water or a small amount of bland food like a piece of bread or a few crackers to absorb excess acid.
Putting It All Together
For the fastest possible relief, combine approaches. Take a liquid antacid or baking soda solution to neutralize the acid that’s already there. Stand up and walk gently to help your stomach empty. Loosen any tight clothing around your waist. Avoid coffee, chocolate, and mint until the episode passes. This layered approach tackles indigestion from multiple angles at once, and most people feel substantially better within 15 to 20 minutes.
If indigestion keeps returning several times a week, that pattern points toward something worth investigating, like gastroesophageal reflux disease or a food sensitivity, rather than a one-off event.
When Indigestion Isn’t Indigestion
Most indigestion is exactly what it feels like: your stomach objecting to what or how you ate. But chest discomfort from a heart attack can mimic indigestion closely enough to fool people. Knowing the difference matters.
Typical indigestion causes a burning sensation in the chest or upper abdomen, usually starts after eating or when lying down, and improves with antacids. You might notice a sour taste in the back of your throat or a small amount of food coming back up.
A cardiac event is more likely if you feel pressure, tightness, or squeezing in your chest that spreads to your neck, jaw, or arms. Shortness of breath, cold sweats, sudden dizziness, or unusual fatigue alongside the chest discomfort are warning signs that this is not your stomach. Call 911 if these symptoms appear. Even if the pain fades on its own after a few hours, that episode still warrants medical evaluation, because both heart attacks and simple heartburn can produce symptoms that come and go.