Chronic atrophic gastritis c1 needs to take medication for treatment, and light, easy-to-digest food is recommended in the diet. Commonly used drugs include acid inhibitors (such as ranitidine), gastric mucosal protectors (such as magnesium aluminum carbonate), gastric stimulants (such as domperidone) and so on. If it is caused by Helicobacter pylori infection, antibiotics such as clarithromycin and amoxicillin need to be applied. In diet, it is recommended to focus on light and easy-to-digest food, such as porridge, which can reduce the burden on the stomach and intestines. Eat more fresh vegetables and fruits, pay attention to dietary diversity and ensure balanced nutrition. However, it should be noted that the appropriate medication must be selected under the guidance of a doctor, and do not use medication on your own.