Gastritis patients can eat sweet potatoes, but do not eat on an empty stomach, and do not eat too much. Sweet potatoes eaten on an empty stomach will cause excessive secretion of gastric acid, causing damage to the gastric mucosa, inducing peptic ulcers and so on. In addition, because the sweet potato is rich in fiber, and high starch content, not easy to be digested, a small amount of food, sweet potato can promote gastrointestinal peristalsis, improve gastrointestinal function. But when taken in large quantities because of its large amount of gas production, can cause abdominal pain, bloating, acid reflux, nausea, vomiting and other abdominal discomfort and indigestion symptoms. For the treatment of gastritis, the cause of the treatment, according to the situation, the choice of drugs to inhibit gastric acid secretion, drugs to protect the gastric mucosa, and anti-Helicobacter pylori infection, etc. At the same time, patients with gastritis, the need for regular review of gastroscopy.