Feeling nauseous after eating can result from various causes related to digestion, infections, food intolerances, and other health conditions. Common reasons include eating too much, food poisoning, food allergies or intolerances (like lactose intolerance), gastrointestinal disorders (such as gastroesophageal reflux disease (GERD), gastroparesis, irritable bowel syndrome (IBS)), infections like stomach flu, gallbladder problems, and pancreatitis. Eating fatty or spicy foods may also trigger nausea, and sometimes psychological factors like stress or anxiety play a role. If nausea is persistent or severe, it is advisable to see a healthcare provider for diagnosis and treatment.
