You can make your stomach less acidic through a combination of dietary changes, over-the-counter medications, and simple lifestyle adjustments. The approach that works best depends on whether you need quick relief right now or a longer-term strategy to keep acid levels in check. Normal stomach acid sits at a pH of one to two, which is extremely acidic for good reason: it breaks down food and kills harmful bacteria. The goal isn’t to eliminate acid entirely, but to bring it down to a level where it stops causing problems.
Quick Relief With Antacids
The fastest way to neutralize stomach acid is with an antacid. Baking soda (sodium bicarbonate) is the simplest option: half a teaspoon dissolved in a glass of water every two hours can ease heartburn within minutes. For the effervescent powder form, the Mayo Clinic lists a dose of one to two and a half teaspoons in cold water after meals, with a daily maximum of five teaspoons. Over-the-counter tablets containing calcium carbonate or magnesium hydroxide work similarly.
Antacids are purely reactive. They neutralize acid that’s already there but do nothing to slow production. If you have high blood pressure, kidney disease, heart disease, or a condition that causes swelling in your legs, sodium bicarbonate can make things worse because it causes your body to retain water. It’s a fine occasional tool, not a daily habit.
Medications That Reduce Acid Production
Two main types of over-the-counter drugs actually slow your stomach’s acid output rather than just neutralizing what’s already present. They work differently and suit different situations.
H2 Blockers
H2 blockers (like famotidine) work by blocking the histamine receptors on acid-producing cells in your stomach lining. Histamine is one of the primary chemical signals that tells those cells to pump out acid. These drugs kick in relatively quickly and can be taken on an as-needed basis, making them a good choice for occasional flare-ups or before a meal you know will cause trouble.
Proton Pump Inhibitors
PPIs (like omeprazole and lansoprazole) are more powerful. They shut down the actual pumps that push acid into your stomach. For best results, take them 30 to 60 minutes before your first meal of the day, since the number of active pumps is highest after an overnight fast. PPIs need four to eight weeks of daily use to fully suppress acid, because not all the pumps in your stomach lining are active at the same time. They’re not designed for occasional use the way H2 blockers are.
Long-term PPI use does carry trade-offs. A systematic review found a 12 to 18 percent reduction in vitamin B12 levels over 12 months of use, along with significant declines in calcium. The evidence on magnesium depletion is mixed, with some studies showing changes and others finding none. If you’ve been on a PPI for months, it’s worth discussing nutrient monitoring with your provider.
Foods That Help and Foods That Hurt
What you eat matters more than most people realize. Some foods are naturally low in acid and gentle on the stomach, while others either increase acid production or relax the valve between your esophagus and stomach, letting acid creep upward.
Melons are among the least acidic fruits you can eat. Honeydew and cantaloupe have a pH between 6.0 and 6.7, which is close to neutral. Watermelon falls around 5.2 to 5.6. Bananas range from 4.5 to 5.2. Compare that to lemon juice at 2.0 to 2.6, vinegar at 2.4 to 3.4, or grapefruit at 3.0 to 3.75. Oatmeal, whole grains, and non-citrus vegetables are also safe choices for most people.
Common triggers include citrus fruits, tomatoes, chocolate, coffee, alcohol, spicy foods, and high-fat meals. You don’t necessarily need to cut all of these permanently. Pay attention to which ones actually bother you and reduce those first. Eating smaller meals also helps because a very full stomach puts pressure on the valve at the top, pushing acid upward.
Ginger and Other Natural Approaches
Ginger has some evidence behind it. It may speed up gastric emptying, the process of moving food from your stomach into your small intestine. Once food leaves the stomach, acid production slows down because there’s nothing left to digest. Faster emptying means less time for acid to build up and potentially splash into your esophagus. Small doses of ginger also appear to reduce inflammation in the esophageal lining. Fresh ginger tea or small amounts of raw ginger are the simplest ways to try this.
Chewing sugar-free gum after meals is a surprisingly effective trick. It stimulates saliva production, and saliva is naturally alkaline. Research shows that chewing gum for 20 minutes after eating can raise saliva pH to around 9.2, well above neutral. The key ingredient is bicarbonate: as your salivary glands ramp up, bicarbonate concentration in your saliva increases dramatically, from less than 1 millimole per liter at rest to nearly 60 at high flow rates. That steady stream of alkaline saliva washes acid back down from the esophagus.
Lifestyle Changes That Lower Acid Exposure
How you sleep has a direct effect on nighttime acid symptoms. Elevating the head of your bed by six to eight inches, using blocks under the bed frame or a wedge under the mattress, keeps gravity working in your favor. Propping yourself up with pillows alone doesn’t work well because it bends your body at the waist, which can actually increase abdominal pressure. The American Gastroenterological Association also recommends sleeping on your left side, because the anatomy of the stomach in that position makes it harder for acid to flow up into the esophagus.
Weight plays a significant role. A hospital-based study found that women who lost 5 to 10 percent of their body weight saw a meaningful drop in reflux symptoms, while men needed closer to a 10 percent loss for similar relief. For someone weighing 200 pounds, that’s 10 to 20 pounds. Excess weight, particularly around the midsection, pushes up on the stomach and weakens the barrier between it and the esophagus.
Timing matters too. Eating your last meal at least two to three hours before lying down gives your stomach time to empty. Tight clothing around the waist creates the same upward pressure as extra weight, so loose-fitting clothes after meals can help more than you’d expect.
When Reducing Acid Goes Too Far
It’s possible to overshoot. A condition called hypochlorhydria means your stomach acid is too low, with a pH of three to five instead of the normal one to two. Above five is a more severe form called achlorhydria, where virtually no acid is being produced. Without enough acid, you can’t properly break down food or absorb its nutrients, particularly protein, vitamin B12, calcium, and magnesium.
Early signs of low stomach acid include bloating, gas, diarrhea or constipation, and undigested food visible in your stool. Over time, the nutritional deficiencies can cause fatigue, brittle nails, hair loss, numbness or tingling in your hands and feet, and even memory problems. Low acid also leaves you vulnerable to bacterial overgrowth in the small intestine, because the acid that normally kills ingested bacteria isn’t doing its job.
The takeaway is straightforward: aim to reduce acid enough to control symptoms, not to eliminate it. If you’re stacking multiple acid-reducing strategies and still having problems, or if symptoms like bloating and poor digestion develop, those could be signs you’ve tipped the balance too far in the other direction.