If your stomach has been rebelling lately, burning after meals, bloating that won’t quit, or a sour taste that creeps up your throat at night, what you eat may be making it worse. The good news is that decades of research from Harvard, Johns Hopkins and the Cleveland Clinic point to a predictable list of culprits behind GERD, gastritis, IBS and ulcers. None of these foods are “banned for life,” but during flares they tend to irritate the stomach lining, relax the valve that keeps acid down, or ferment in ways your gut simply cannot tolerate. Here are the 16 foods gastroenterologists flag most often, and the specific mechanism behind each one.
Deep-Fried Foods
Fried chicken, french fries and onion rings are the first foods Harvard Health tells GERD patients to drop. The problem is mechanical: fat-saturated foods “linger longer in the stomach, making it more likely that stomach acid leaks back up into the esophagus,” according to Harvard Medical School. Healthline adds that high-fat foods also “lower pressure on your LES and delay stomach emptying,” a double hit that forces the lower esophageal sphincter open right when acid is at its peak. WebMD notes the same delay “can lead to belly pain and bloating, bad news if you have an ulcer.” Swap deep-fried for oven-baked, air-fried, or grilled preparations during flares.