Conditions Acid reflux/gastroesophageal reflux disease (GERD) Barrett’s Esophagus Belching, bloating and flatulence Celiac disease Colon cancer Constipation Diarrhea Eosinophilic esophagitis Gastroparesis Helicobacter pylori Hemorrhoids and fissures Hepatitis Indigestion (dyspepsia) Inflammatory bowel disease (IBD) Irritable bowel syndrome (IBS) Fatty Liver Disease/Metabolic dysfunction-associated steatotic liver disease (MASLD) Nausea and vomiting