2, however, there is a part of the chronic gastritis patients can feel free to drink yogurt, beneficial, this is the chronic atrophic gastritis patients. Because most of the patients with chronic atrophic gastritis have insufficient gastric acid and pepsin secretion, and pepsin activity is reduced. Patients present low gastric acid state, and can thus affect appetite or cause fullness, indigestion and other clinical manifestations. This part of the patients drink yogurt can help to improve the secretion of gastric acid and pepsin, and enhance the activity of pepsin, but also enhance the gastrointestinal immune defense function, on the improvement of the condition and alleviate the symptoms.