2, because tea contains a theophylline, theophylline can stimulate the gastric mucosa. Patients suffering from chronic gastritis, due to the inflammation of the mucosa of the stomach stimulation, the theophylline in tea will stimulate the gastric mucosa which will lead to gastric bloating, stomach pain, acid reflux, dry heaving, vomiting, abdominal pain.

3, gastric ulcer patients due to gastric mucosal damage, gastric mucosal protective barrier is damaged by the emergence of ulcers, tea theophylline stimulation of gastric mucosa will exacerbate ulcers, serious will lead to bleeding, perforation. Patients with poor stomach and intestines should pay attention to their diet, do not eat too greasy, cold, irritating food, such as tobacco, alcohol, coffee and frozen drinks. Eat more warm, easy-to-digest foods such as millet porridge, pumpkin porridge, white yam and other foods that are easy to digest and nutritious, and will not burden the stomach and intestines.