Gastritis patients can properly eat grapefruit, because grapefruit contains a large number of vitamins, minerals, etc., can improve the immunity of the gastrointestinal tract, reduce the inflammation of the gastric mucosa, while for indigestion, abdominal distension and constipation patients have a better relief. But patients with gastritis eating grapefruit should pay attention to the following points: 1, grapefruit contains a large number of citric acid, after eating can lead to a decrease in the pH of the stomach, acidic increase, with acute gastritis, chronic superficial gastritis, chronic erosive gastritis patients should eat less or not, so as not to aggravate the condition of acid damage to the gastric mucosa. 2, grapefruit contains a large number of potassium ions, phosphorus ions, such substances can be produced on the gastric mucosa