How to Stop Your Stomach from Growling Loudly in Class
To prevent empty-stomach growls during class, eat a small meal or drink some juice before class starts. Make sure your meal doesn't contain indigestible foods like pasta or whole-wheat flour, or your stomach might actually growl louder. If the growling is because you're gassy, stop eating foods that cause gas, like cheese and beans. You can also try taking over-the-counter gas relief medicine to stop your stomach noises.
Understand what is normal. Your stomach growling is caused by your digestive system doing what it's supposed to do: mixing food, fluids, and gastric juices and pushing them through the intestinal tract. The rumbling occurs when the walls of your gastrointestinal tract contracts and relaxes to squeeze everything through the intestines. Even with a proper diet, growling is bound to happen sometimes and is no reason to be embarrassed. Try not to eat large meals before class. When you eat too much food, it will put your digestive system into overdrive. The growling can occur more often when this happens, because there is more to move through the intestines. Avoid an empty stomach. When your stomach has been empty for two hours, the growling sounds louder. This is because there is little or nothing in the stomach to absorb or muffle the noise. When you go hours without eating, your body releases hormones that let the brain know it's time to clear anything left in the stomach to make room for whatever food is to come. Have small, healthy snacks with you at all times. Constantly hydrate yourself with liquids. Use water, juice, tea, etc. Limit indigestible foods. Certain carbs are resistant to digestion. Don't avoid carbs completely because they help supply you with energy and play a main role in the health of your digestive tract. Simply eat them in moderation to keep your stomach healthy but less likely to growl. Resistant starch: potatoes or pasta that has been cooled after cooking, sourdough bread, and unripe fruit. Insoluble fiber: whole-wheat flour, wheat bran, cabbage, lettuce, and bell peppers Sugar: apples, pears, and broccoli Know your hunger cues. Remember that growling can happen both when you've just eaten and when you haven't eaten in a while. To avoid over-eating and excessive stomach growling, know when you're actually hungry. Learning the timing scheme your normal eating regimen is the best way to keep track and avoid mindless eating. Eat slowly and chew properly. People who swallow a lot of air usually experience more stomach growling than others. If you eat too fast or talk a lot while eating, you are likely swallowing a lot of air. Eat more slowly to avoid this. Take gas relief medicines. Excessive gas in the gut can cause loud stomach growling. A simple way to avoid this is by taking an over-the-counter gas relief medication. It isn't necessary to take some every time you eat, but try to remember it before you eat food that causes you to be overly gassy. Avoid food that will makes you gassy. Certain foods are known to cause gas because of the complexity in breaking them down. Avoiding an excess of these foods will help control your stomach growling. Cheese Milk Artichokes Pears Broccoli Beans Fast food Soda Take a walk. After eating a meal, take a walk. It doesn't have to be more than a ½ a mile. Walking will aid in digestion and keep your bowels moving along in a healthy manner. Exercise consistently. A sedentary lifestyle can lead you to stomach problems. These creates an excess of noise from your stomach. Not exercising will create a negative impact on your weight and physical tolerance to certain foods which will lead to a bloated stomach, gas, and extremely loud noises. Know if you have a nervous disorder. If you are constantly nervous or anxious, your nerves send signals to your stomach. These signals cause gurgling sounds. If you notice that you experience stomach gurgling throughout the day, regardless of diet or lifestyle changes, you may have a nervous disorder that can be addressed by a doctor. Learn food intolerance symptoms. Consuming certain food items can cause allergic reactions that cause an upset stomach and force stomach gurgling. If you notice stomach discomfort often after eating the same kinds of food—avoid that food. The most often kind of food intolerance is lactose-intolerance. This is when dairy products cause intense stomach irritation. Notice severe indigestion, also known as dyspepsia. Upper abdominal pain, excessive belching, nausea, feeling full after a small amount of food and swelling of the abdominals are all symptoms of a more serious indigestion problem. If you experience these consistently, seek medical attention. Dyspepsia is not a life-threatening problem but should be addressed. 
Understand what is normal. Try not to eat large meals before class. Avoid an empty stomach. Limit indigestible foods. Know your hunger cues. Eat slowly and chew properly. Take gas relief medicines. Avoid food that will makes you gassy. Take a walk. Exercise consistently. Know if you have a nervous disorder. Learn food intolerance symptoms. Notice severe indigestion, also known as dyspepsia. 