Stomach acid causing you discomfort can be neutralized, suppressed, or managed through a combination of over-the-counter medications, dietary changes, and physical adjustments. The fastest option is a chewable antacid tablet, which neutralizes acid on contact. But if acid is a recurring problem, longer-term strategies will serve you better than reaching for a quick fix every time.
Fast-Acting Relief Options
Over-the-counter medications for stomach acid fall into three categories, and they work on very different timelines. Antacids (calcium carbonate products like Tums) neutralize acid that’s already in your stomach. They work within minutes but wear off relatively quickly, making them best for occasional flare-ups rather than ongoing problems.
H2 blockers like famotidine (Pepcid) reduce how much acid your stomach produces in the first place. They have a quick onset and can be taken as needed, which makes them a good middle ground between antacids and stronger options. Proton pump inhibitors (PPIs) like omeprazole (Prilosec) are the most powerful acid suppressors available without a prescription, but they’re not designed for instant relief. PPIs work best when taken 30 to 60 minutes before your first meal of the day, and they need 4 to 8 weeks of daily use to fully suppress acid production, since not all acid-producing cells in your stomach are active at the same time.
If you’ve been taking a PPI daily for weeks or longer, don’t stop abruptly. Your body compensates for the reduced acid by ramping up the hormones and cells that trigger acid production. When you suddenly remove the PPI, that built-up capacity fires all at once, often producing more acid than you had before you started the medication. Tapering off gradually helps avoid this rebound effect.
Baking Soda as a Quick Neutralizer
Baking soda (sodium bicarbonate) is one of the oldest home remedies for stomach acid, and it does work as a basic antacid. The Mayo Clinic lists a dose of half a teaspoon dissolved in a glass of water, taken every two hours as needed. The daily maximum is about five teaspoons. It neutralizes acid through a simple chemical reaction, producing water, salt, and carbon dioxide (which is why you may burp afterward).
There are real limits to this approach, though. Baking soda is loaded with sodium, so it’s a poor choice if you’re watching your salt intake. Don’t take it within one to two hours of other medications, because it can interfere with absorption. Don’t combine it with large amounts of milk or dairy. And don’t use it for more than two weeks. If you need it that often, the underlying problem needs attention, not just repeated neutralization.
Foods That Make Acid Worse
Certain foods relax the muscular valve between your stomach and esophagus, letting acid escape upward. They also slow digestion, which means food sits in the stomach longer and triggers more acid production. The biggest offenders are high-fat, high-salt, and heavily spiced foods: fried food, fast food, pizza, bacon, sausage, cheese, and processed snacks like potato chips.
Other common triggers work through similar mechanisms. Tomato-based sauces, citrus fruits, chocolate, peppermint, and carbonated beverages can all relax that valve or directly irritate the esophagus. You don’t necessarily need to eliminate all of these permanently. Paying attention to which specific foods consistently cause your symptoms gives you a targeted list rather than a blanket restriction.
What About Apple Cider Vinegar?
Apple cider vinegar is one of the most widely recommended home remedies for acid reflux online, but there is no published clinical research supporting its use for heartburn. Zero studies in medical journals have tested whether it helps. The idea that adding more acid to an already acidic stomach would reduce symptoms doesn’t hold up physiologically for most people, and the acetic acid in vinegar can erode tooth enamel and irritate an already inflamed esophagus. Stick with approaches that have actual evidence behind them.
Physical Adjustments That Reduce Acid Exposure
Gravity is one of the simplest tools you have. When you lie flat, stomach acid can pool against that valve at the top of your stomach and leak into your esophagus. A wedge pillow that elevates your entire upper body (not just your head) creates a downhill slope that keeps acid where it belongs. Regular pillows don’t accomplish the same thing because they bend you at the neck without changing the angle of your torso.
Sleeping on your left side also helps. A study highlighted by Harvard Health Publishing found that while sleep position didn’t change how often acid escaped into the esophagus, acid cleared significantly faster when participants slept on their left side compared to their back or right side. The anatomy works in your favor: your stomach curves in a way that positions its opening above the acid pool when you’re on your left, making reflux less likely to linger.
Eating your last meal at least two to three hours before lying down gives your stomach time to empty and reduces the volume of acid available to cause trouble at night.
Chewing Gum After Meals
This one sounds too simple to work, but chewing sugar-free gum for 20 to 30 minutes after eating stimulates saliva production. Saliva naturally contains bicarbonate, which neutralizes acid that has splashed up into your esophagus. The repeated swallowing also helps push acid back down into the stomach. Bicarbonate-containing gum amplifies this effect. It won’t solve a serious acid problem on its own, but as an add-on strategy after meals, it’s low-risk and genuinely helpful.
Breathing Exercises for the Acid Barrier
The diaphragm, the dome-shaped muscle you use to breathe, wraps around the same area where your esophagus meets your stomach. Strengthening it through diaphragmatic breathing can reinforce that natural barrier against acid reflux. The technique is straightforward: stand with good posture, place both hands on your abdomen, and breathe in deeply so your stomach and rib cage expand rather than your chest. As you exhale, gently tighten your abdominal muscles and push your stomach back in. Practiced regularly, this type of breathing can improve the muscle tone around that critical junction.
Signs That Need Medical Attention
Occasional heartburn is common and manageable with the strategies above. But certain symptoms signal something more serious. Difficulty swallowing or pain when swallowing, persistent vomiting, unexplained weight loss, and loss of appetite all warrant a medical evaluation. Vomit that contains blood or looks like coffee grounds, or stool that appears black and tarry, can indicate bleeding in the digestive tract and needs prompt attention. Chest pain that you can’t clearly distinguish from heartburn should also be evaluated, since the two can feel remarkably similar.