Your stomach gurgles because your intestines are hollow muscular tubes, and when they squeeze food, liquid, and gas through that space, the sound echoes much like water moving through pipes. This is completely normal. The medical term is borborygmi, and nearly everyone experiences it throughout the day, whether they notice it or not.
What Creates the Sound
Your digestive tract is always working. Muscles lining your intestines contract in rhythmic waves to push contents forward, and as food mixes with digestive juices and pockets of gas, the result is an audible rumble. The intensity of the sound depends on how much gas and liquid are present and how vigorously the muscles are contracting. A quiet digestive system and a noisy one are both functioning normally in most cases.
Why an Empty Stomach Is Louder
Hunger is the most common reason for obvious gurgling. When your stomach has been empty for a while, your body releases a hormone called ghrelin. Ghrelin levels rise during fasting and drop after you eat, earning it the nickname “hunger hormone.” Beyond triggering appetite, ghrelin stimulates gastric motility and acid secretion. That means your stomach and intestines start contracting even before food arrives. With nothing solid to muffle those contractions, the sound travels more freely through the hollow space and becomes the growl you hear in a quiet meeting room.
Gurgling After Eating
Noises after a meal usually mean digestion is working as expected. But certain foods produce more gas than others, and that extra gas amplifies the sound.
If you notice gurgling specifically after dairy, lactose malabsorption could be the reason. When your body doesn’t fully break down lactose, the undigested sugar reaches your lower intestine, where bacteria ferment it. That fermentation produces hydrogen, carbon dioxide, and methane. It also draws water into the intestine through osmotic pressure, increasing the volume of liquid sloshing around. The combination of extra gas and extra fluid makes for a noisier gut. Research shows the amount of gas produced directly correlates with how severe the symptoms feel.
Lactose isn’t the only trigger. A group of short-chain carbohydrates found in many common foods can cause the same fermentation effect. These include wheat, rye, garlic, onions, apples, pears, watermelon, mushrooms, most beans, and dairy products like milk, ice cream, and soft cheeses. If gurgling consistently follows meals, paying attention to whether these foods are involved can help you identify a pattern.
Swallowed Air Adds to the Noise
Every time you swallow, a small amount of air goes down with it. Certain habits increase that amount significantly. Eating too fast, talking while chewing, chewing gum, sucking on hard candy, drinking through a straw, and consuming carbonated beverages all push extra air into your digestive tract. Smoking does the same. That swallowed air has to go somewhere, and as it moves through your intestines, it contributes to gurgling, bloating, and gas.
Simple changes can make a noticeable difference: chew slowly, finish one bite before taking the next, sip from a glass instead of a straw, and save conversation for between bites rather than during them. Cutting back on carbonated drinks and gum eliminates two of the biggest sources of excess air.
When Gurgling Points to Something Else
Occasional noise is normal. Persistent, loud gurgling paired with other symptoms is worth investigating.
Small intestinal bacterial overgrowth, or SIBO, occurs when bacteria multiply excessively in the small intestine. Symptoms are nonspecific: bloating, abdominal discomfort, diarrhea, fatigue, and ongoing noisy digestion. In one clinical trial studying SIBO treatments, gurgling was specifically tracked as a symptom and proved resistant to treatment even when bacterial counts improved. Diagnosis typically involves a breath test that measures hydrogen and methane gas after drinking a sugar solution, though these tests have limited sensitivity (as low as 31-44% depending on the method).
Irritable bowel syndrome is another common cause of chronic gurgling alongside alternating diarrhea and constipation. Food intolerances beyond lactose, including fructose and certain sugar alcohols, can also keep the noise going meal after meal.
Signs That Need Medical Attention
A few specific patterns suggest something more serious. High-pitched, almost tinkling stomach sounds can indicate a partial or complete bowel obstruction, especially when combined with crampy pain that comes and goes, vomiting, inability to pass gas or have a bowel movement, and visible abdominal swelling. A bowel obstruction is a medical emergency.
Outside of that urgent scenario, seek evaluation if your gurgling comes with persistent abdominal pain, cramping, significant bloating, nausea, vomiting, ongoing diarrhea or constipation, or unexplained weight loss. Any of these accompanying symptoms shifts the situation from “normal digestion” to “something your doctor should assess.”
How to Quiet a Noisy Gut
For everyday gurgling, the fixes are straightforward. Eating regular meals prevents the empty-stomach contractions that ghrelin triggers. Smaller, more frequent meals keep the digestive tract occupied without overloading it. Slowing down while eating reduces swallowed air.
If certain foods seem to be the problem, a low-FODMAP approach can help you isolate triggers. This involves temporarily removing high-fermentation foods (wheat, garlic, onions, apples, dairy, beans, and others on the list above) and reintroducing them one at a time. The American College of Gastroenterology recognizes this as a useful strategy for people with gas-related symptoms. It’s meant to be a short-term elimination process, not a permanent diet, since many of these foods are otherwise nutritious.
Over-the-counter gas relief products containing simethicone work by breaking up gas bubbles in the intestine, which can reduce both the sound and the bloating sensation. They won’t address an underlying cause like lactose malabsorption or SIBO, but they can take the edge off a noisy afternoon.