Gas and Belching After Greasy & Fatty Food

Fatty foods can trigger gas in people with IBS, gastritis, acid reflux and food intolerances.

Gas normally occurs after eating too fast, not chewing thoroughly or after eating gas-producing foods. However, gas can also occur due to gastritis, acid reflux, food intolerance and irritable bowel syndrome. These conditions flare up when certain foods are eaten that irritate the stomach. These foods may include greasy, fatty foods.


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Gastritis is the inflammation of the stomach lining. This condition is usually short-lived, but it can also linger for months or years. In addition to eating foods that irritate the stomach lining, gastritis can also be caused by extreme stress, cocaine abuse, bile reflux, autoimmune disorders and a weakened immune system. Symptoms of gastritis are loss of appetite, nausea and vomiting, indigestion, bloating and pain in the upper abdomen.


Acid Reflux

Gastroesophageal reflux disease is a medical condition that occurs when contents of the stomach reflux into the esophagus. After swallowing, food goes down the esophagus and through a band of muscles called the lower esophageal sphincter and then into the stomach. If this band of muscles does not close properly after eating, acid and food may reflux back into the esophagus, which can cause symptoms such as heartburn, coughing, wheezing, difficulty swallowing, hiccups and bloating. Eating fatty foods or spicy foods can trigger this condition. Other triggers are ingesting alcohol, caffeine, chocolates, carbonated beverages and citrus fruit.


Food Intolerance

Food intolerance is caused by stress or other psychological factors, as well as celiac disease and sensitivity to food additives. Eating extremely greasy foods or fatty foods may cause symptoms of food intolerance if any of the previous causes apply. Symptoms of food intolerance are swelling of the lips, face or hands, nausea, indigestion, cramping or diarrhea.



Irritable bowel syndrome is a condition that causes changes in bowel movements, abdominal pain and cramping after eating certain foods. According to Pub Med Health, it is not clear why people develop IBS, but in some cases it may develop after an intestinal infection. Any type of food or beverage can trigger bouts of IBS in sufferers. Symptoms of IBS are abdominal pain, bloating, gas, constipation and diarrhea after eating.