Stomach gurgling is caused by muscle contractions pushing food, liquid, and gas through your digestive tract. It’s completely normal and happens to everyone, but it can be louder and more frequent depending on what you’ve eaten, how much air you’ve swallowed, and how actively your gut is working. The good news: most gurgling responds well to simple changes in how and what you eat.
Why Your Stomach Makes Noise
Your stomach and intestines are lined with layers of smooth muscle that contract in rhythmic waves to move food along. In the stomach alone, these contractions cycle about three times per minute. As those muscles squeeze, they push pockets of gas and liquid through tight spaces, and the result is an audible rumble or gurgle. The medical term is borborygmi, and it happens during digestion and between meals. In fact, gurgling is often louder on an empty stomach because there’s less food to muffle the sound of gas and fluid sloshing around.
Three ingredients make the noise louder: stronger muscle contractions, more gas, and more liquid in the gut. Anything that increases one of those three will turn up the volume. That’s why diarrhea, for example, tends to produce louder gut sounds. The increased fluid and faster contractions amplify every movement.
Cut Down on Swallowed Air
A surprising amount of stomach noise comes from air you swallow without realizing it. Every gulp adds a small pocket of gas that your intestines eventually have to move along. Common culprits include eating too fast, talking while you eat, chewing gum, sucking on hard candy, drinking through a straw, and drinking carbonated beverages. Smoking also increases air swallowing significantly.
The fixes are straightforward. Slow down at meals and chew with your mouth closed. Sip from a glass instead of using a straw. Swap sparkling water or soda for still drinks, at least when the gurgling bothers you most. If you’re a habitual gum chewer, cutting back for a few days can make a noticeable difference.
Foods That Make It Worse
Certain foods produce more gas during digestion because they contain carbohydrates that your small intestine can’t fully break down. Bacteria in your colon then ferment those carbohydrates, releasing hydrogen and other gases. The extra gas, combined with the extra fluid your gut draws in to process it, creates a perfect recipe for loud gurgling. The most common triggers:
- Beans and lentils
- Cruciferous vegetables like broccoli, cauliflower, cabbage, and Brussels sprouts
- Bran and high-fiber cereals
- Dairy products if you have any degree of lactose intolerance
- Fructose, found in some fruits, honey, and many soft drinks
- Sugar alcohols like sorbitol, common in sugar-free gum and candies
Foods that cause gas in one person may not affect another, so pay attention to your own patterns. You don’t necessarily need to eliminate these foods permanently. Eating smaller portions of them, or spreading them across meals instead of loading up at once, often keeps the noise manageable.
Enzyme Supplements for Gassy Foods
If beans, lentils, or other high-fiber foods are a regular part of your diet, an enzyme supplement taken with the meal can help. Products containing alpha-galactosidase (sold under brand names like Beano) break down the complex carbohydrates that your body can’t digest on its own, reducing the amount that reaches your colon for fermentation. In a controlled study of healthy volunteers eating a large serving of beans, the enzyme significantly reduced both gas production and the severity of gas-related symptoms compared to a placebo.
For dairy-related gurgling, a lactase supplement taken before eating works on the same principle. It supplies the enzyme your body is short on, so the lactose gets digested before bacteria can ferment it.
Walk After Eating
A short walk after a meal helps move gas through your digestive tract more efficiently, which can prevent it from pooling and creating loud gurgles later. Even 10 to 15 minutes of gentle movement makes a difference. This works because upright posture and light physical activity stimulate the natural contractions of your intestines, helping food and gas transit more smoothly rather than getting stuck in one section.
Probiotics for Ongoing Gas and Bloating
If your gurgling comes with regular bloating, burping, or flatulence, a probiotic supplement may help over time. In a randomized, placebo-controlled trial, healthy adults who took a specific strain of Bacillus subtilis daily for six weeks saw meaningful improvement in their combined bloating, burping, and flatulence symptoms. About 47% of participants in the probiotic group improved, compared to 22% on placebo. A separate trial using a related Bacillus strain at a slightly higher dose also found reductions in bloating intensity and days with abdominal discomfort over four weeks.
Probiotics aren’t an instant fix. They work by gradually shifting the balance of bacteria in your colon, which can change how much gas your gut produces during fermentation. Most people need at least three to four weeks of daily use before noticing a difference.
Eat Something (Don’t Skip Meals)
If your stomach gurgling is loudest when you’re hungry, that’s because your digestive system runs a cleaning cycle between meals. These stronger contractions sweep residual food particles and bacteria through your intestines, and with nothing to absorb the sound, the rumbling can be surprisingly loud. Eating a small snack quiets it almost immediately by giving your stomach something to work on more gently. Keeping regular meal times, rather than going long stretches without food, prevents the most noticeable between-meal noise.
When Gurgling Signals Something Else
Normal stomach gurgling is harmless, even when it’s embarrassingly loud. But persistent changes in your gut sounds, especially combined with other symptoms, can point to a digestive issue worth investigating.
Lactose intolerance is one of the most common causes of chronic gurgling. When your body can’t break down lactose, bacteria in your colon ferment it rapidly, releasing hydrogen and pulling extra fluid into the intestines. This ramps up all three factors that produce noise: more gas, more liquid, and stronger contractions. If your gurgling consistently worsens after dairy, that’s a strong clue.
Irritable bowel syndrome and other functional gut disorders can also increase bowel sounds, particularly during flare-ups with diarrhea or bloating. The increased muscle activity and gas production that come with these conditions make the digestive tract noisier overall.
Very high-pitched bowel sounds can be an early sign of a bowel obstruction. And a sudden absence of bowel sounds after a period of loud, hyperactive gurgling is a more serious warning sign that could indicate a loss of blood flow to part of the intestine. If loud gurgling is accompanied by severe pain, vomiting, inability to pass gas or have a bowel movement, or a visibly swollen abdomen, that combination needs prompt medical attention.