What to Take for a Gurgling Stomach

For most gurgling stomachs, simethicone (the active ingredient in Gas-X and similar products) and peppermint oil capsules are the two best-studied options that address the noise at its source: trapped gas and overactive smooth-muscle contractions. But which one to reach for depends on what is actually driving the sound, because a gurgling stomach is not one problem with one fix. Sometimes it is plain hunger, sometimes it is gas working through your intestines, and sometimes it is stress rerouting how your gut moves food along. Each of those scenarios responds to different remedies.

What Is Actually Making That Noise

The medical term for stomach gurgling is borborygmi, and the sound comes from liquid and gas being squeezed through your gastrointestinal tract by muscular contractions. Your gut is never truly silent; peristalsis keeps things moving around the clock. But the gurgling gets louder and more noticeable under two main conditions: when there is more gas than usual, and when the contractions themselves are stronger or faster than normal.

Hunger is one of the most common triggers. When you have not eaten for a while, your stomach and upper intestine go through a housekeeping cycle of powerful contractions called phase III of the migrating motor complex. These contractions sweep residual food, mucus, and bacteria forward, and the hormone motilin drives the process. Research in healthy fasting volunteers found that hunger ratings spiked during gastric phase III contractions but not during the quieter phases, and that motilin levels correlated directly with how hungry participants felt.¹ An ultrasound study found that rumbling was perceived during the vast majority of these fasting contractions, particularly when intraluminal air was present, and participants rated the rumbling as their peak awareness of hunger.² In other words, much of what people describe as a “gurgling stomach” is literally their gut’s way of announcing it is empty and ready for food.

After a meal the picture changes. Digestion produces gas from bacterial fermentation, swallowed air, and chemical reactions between stomach acid and bicarbonate in the small intestine. That gas, combined with the liquid contents being pushed along, creates the sloshing, bubbling sounds people hear an hour or two after eating. If the meal was high in fiber, contained fermentable sugars, or included something your body does not digest well (like lactose if you are intolerant), the gas volume goes up and the noise follows.

Simethicone for Trapped Gas

Simethicone is the most widely available over-the-counter remedy for gas-related gurgling. It works by reducing the surface tension of gas bubbles in your digestive tract, causing small bubbles to merge into larger ones that are easier to pass. It is not absorbed into the bloodstream, which is why it has an extremely clean safety profile and can be taken by most adults without worry.

The evidence for simethicone is strongest for bloating. A systematic review and meta-analysis found that people who took simethicone alongside a bowel preparation solution had substantially lower odds of bloating compared to those who took the prep alone.³ A randomized controlled trial looking at acute diarrhea with gas-related abdominal discomfort found that the combination of loperamide and simethicone provided faster relief of gas symptoms than simethicone or loperamide alone, or placebo.⁴

Simethicone is a reasonable first choice if your gurgling happens after meals and comes with a feeling of fullness, visible abdominal distension, or frequent need to pass gas. It will not stop your stomach from gurgling when you are hungry, because those contractions are muscular and have nothing to do with excess gas bubbles. Think of simethicone as specifically addressing the “too much trapped gas” side of the equation.

Peppermint Oil Capsules

Peppermint oil takes a different approach. Rather than collapsing gas bubbles, it relaxes the smooth muscle lining your digestive tract, which calms the contractions that push gas and fluid around noisily. The main active component, menthol, acts directly on calcium channels in gut smooth muscle to reduce spasm.

The clinical data here is encouraging, especially for people with irritable bowel syndrome or functional dyspepsia. A review of peppermint oil’s effects across multiple trials found that it relaxes smooth muscle throughout the esophagus, stomach, duodenum, and large bowel, and can also tone down the gut’s sensitivity to distension.⁵ In one trial included in a broader review, roughly three-quarters of people taking peppermint oil reported marked or moderate improvement in borborygmi (the medical name for stomach rumbling), compared to about a third on placebo. The same trial showed similar improvements in distension and flatulence.⁶

If your gurgling is accompanied by cramping, a sense of things churning aggressively, or a diagnosis of IBS, peppermint oil capsules (enteric-coated, so they dissolve in the intestine rather than the stomach) are worth trying. One practical note: because peppermint oil relaxes the lower esophageal sphincter, it can worsen heartburn in some people. If acid reflux is already a problem for you, start cautiously or look for delayed-release formulations designed to bypass the upper tract.

Probiotics

Probiotics occupy a murkier space. The general idea is that rebalancing your gut bacteria could reduce gas production from fermentation, but the evidence is strain-specific and modest. One randomized, double-blind, placebo-controlled trial tested a specific strain, Bacillus subtilis BS50, in healthy adults and found that about 47% of those taking the probiotic showed improvement in a composite score of bloating, burping, and flatulence after six weeks, versus about 22% on placebo.⁷ The burping improvement was statistically significant; bloating improvement trended in the right direction but did not quite reach conventional significance.

The honest takeaway is that probiotics may reduce gas-related noise over weeks of consistent use, but the effects are not dramatic and they vary enormously from product to product. What works for one strain at one dose does not automatically apply to another probiotic sitting next to it on the shelf. If you decide to try one, pick a product that names specific strains and doses, give it at least four to six weeks, and do not expect an overnight fix.

How Stress Amplifies the Gurgling

If your stomach seems loudest during meetings, exams, or any moment when you would prefer silence, that is not your imagination. Stress has a well-documented effect on gut motility. Research on stress-induced changes in the gastrointestinal tract shows a consistent pattern: acute stress slows gastric emptying (food sits in the stomach longer) while simultaneously speeding up colonic transit (things move faster through the lower gut).⁸ That mismatch creates a situation where food pools and ferments in the upper tract while the lower tract contracts more vigorously, pushing gas and liquid along with more force and more noise.

The brain drives this through the release of corticotropin-releasing factor, and serotonin released in the gut itself plays a role in ramping up colonic contractions during stressful episodes.⁸ This means that no amount of simethicone or peppermint oil will quiet a stress-driven gut if the underlying anxiety stays active. For people who notice a strong connection between nervous situations and stomach noise, addressing the stress side (slow breathing, regular physical activity, or even professional anxiety management) can be more effective than any supplement.

Simple Habits That Reduce the Noise

Before you buy anything, a few behavioral changes are worth trying because they address the most common amplifiers of borborygmi:

Eat regularly: The loudest hunger-driven gurgling happens during extended fasting, when those motilin-driven housekeeping contractions kick in. Eating smaller, more frequent meals prevents the gut from entering long empty stretches where phase III contractions generate the most noise.
Slow down at meals: Eating quickly or talking a lot while eating increases the amount of air you swallow, which gives the gut more gas to move around noisily. Chewing slowly with your mouth closed is a surprisingly effective countermeasure.
Watch carbonated drinks and straws: Both introduce extra gas into the stomach. If gurgling is a recurring annoyance, switching to still water and drinking from the glass directly cuts one source of input.
Limit high-FODMAP foods temporarily: Certain carbohydrates (found in onions, garlic, beans, wheat, and some fruits) are fermented rapidly by gut bacteria and produce large volumes of gas. A short trial of reducing these foods can help you identify personal triggers.

Does Posture Matter

There is a physical geometry to digestion that most people do not think about. The stomach empties into the duodenum through the pylorus, which sits on the right side of the body. A study measuring gastric emptying in different positions found that lying on the right side roughly doubled the rate of emptying compared to lying on the left side, with sitting falling somewhere in between.⁹

This has a practical implication: if your stomach is gurgling after a meal and you are about to lie down (say, at night), lying on your right side allows gravity to assist emptying and reduces the pooling that can amplify sloshing sounds. Lying on your left side can trap contents in the stomach longer and increase the chance of both gurgling and reflux. For post-meal gurgling specifically, a brief walk is often better than lying down at all, because gentle upright movement helps gas transit through the tract more efficiently.

When the Gurgling Is Not Just Gas

Most stomach gurgling is completely benign. But there are situations where persistent, loud borborygmi points to something that deserves medical attention rather than a trip to the pharmacy.

Lactose intolerance is one of the most common culprits behind chronic post-meal gurgling. If you lack sufficient lactase enzyme, the lactose in dairy products reaches your colon undigested, where bacteria ferment it into large quantities of gas. The pattern is usually recognizable: the gurgling and bloating show up reliably within an hour or two of consuming dairy and improve when you avoid it. Celiac disease can produce similar symptoms. In celiac disease, gluten triggers an immune response that damages the small intestine’s lining, leading to malabsorption and excess fermentation of nutrients that should have been absorbed higher up in the tract. Both conditions are diagnosable with straightforward testing.

Fructose and sugar alcohols (like sorbitol and mannitol, commonly found in sugar-free gum and diet products) can also cause persistent gurgling in people who absorb them poorly. These substances draw water into the intestine and serve as fuel for gas-producing bacteria. If your gurgling consistently worsens after consuming diet products or certain fruits like apples and pears, fructose malabsorption is worth investigating.

Rarer but worth knowing about: some people experience gurgling in the chest rather than the abdomen. A case study documented a patient with chronic chest pain accompanied by gurgling noises that turned out to be caused by dysfunction of the belch reflex. Fluoroscopic and manometric testing confirmed the gurgling resulted from gas refluxing from the stomach into the esophagus, and the pain came from the esophagus distending under pressure because the patient could not release the gas by belching normally.¹⁰ This is uncommon, but if your gurgling comes from the chest area, feels associated with an inability to burp, and causes significant discomfort, it is a different problem from typical intestinal gas.

Putting a Plan Together

Because different types of gurgling respond to different interventions, matching the remedy to the trigger matters more than just grabbing whatever is on sale. A practical way to think about it:

Hunger gurgling: Eat something. A small snack interrupts the fasting contractions. No supplement addresses this as effectively as food does.
Post-meal gas and bloating: Simethicone after eating helps consolidate gas bubbles. Reducing carbonation and air swallowing prevents extra gas from entering in the first place.
Crampy, churning noise with IBS features: Enteric-coated peppermint oil capsules taken before meals can quiet the overactive contractions.
Chronic, low-grade gassiness: A trial of probiotics (specific, researched strains at documented doses) over several weeks. Simultaneously investigate whether a food intolerance is the root cause.
Stress-linked gurgling: Address the stress. Breathing exercises, regular movement, and adequate sleep have downstream effects on gut motility that supplements cannot replicate.

Many people will find that a combination approach works best. Peppermint oil to calm the muscular contractions, simethicone to handle the trapped gas, and dietary adjustments to reduce gas production in the first place can be used together safely because they act through entirely different mechanisms. For the minority whose gurgling persists despite these measures, blood tests for celiac disease, a hydrogen breath test for lactose or fructose malabsorption, or a gastroenterology consultation can uncover the less obvious causes that no over-the-counter product is designed to fix.

Artificial Sweeteners and the Gurgling Connection

One trigger that catches people off guard is the sugar alcohol content in products marketed as healthy or low-calorie. Sorbitol, mannitol, xylitol, and erythritol are widely used in sugar-free gum, protein bars, diet drinks, and even some medications (liquid cough syrups, chewable vitamins). These compounds are poorly absorbed in the small intestine, so they travel intact to the colon, where bacteria ferment them enthusiastically. The result is a surge of hydrogen and methane gas that can turn a quiet gut into a noisy one within an hour.

What makes this particularly sneaky is that many people do not associate their gurgling with these products because the items themselves seem innocuous. A couple of sticks of sugar-free gum after lunch can easily deliver enough sorbitol to produce noticeable gas, especially in people who are already somewhat sensitive. If your gurgling seems random or hard to pin down, keeping a food diary that specifically tracks sugar-free products and “no added sugar” items for a week or two can reveal a pattern you would otherwise miss.

Erythritol is a partial exception. Unlike sorbitol and mannitol, most of it gets absorbed in the small intestine and excreted through the kidneys, so it produces less fermentation-driven gas at moderate doses. If you want the sweetness without the gurgling, erythritol-based products tend to be the gentlest option, though very large amounts can still cause issues.