Commercially sold canned tomatoes often have a lower pH due to added lemon juice or citric acid ... which allows stomach acid to flow back into the esophagus. Fatty foods to avoid include full ...

Gastric juice is a liquid produced by the stomach which is essential for breaking down food and absorbing nutrients. It is made up of hydrochloric acid, enzymes (such as pepsin), water and salts.

The authors conclude that gastric juice analysis is both more effective and cheaper than conventional techniques for the diagnosis of AGOM and H. pylori infection.