Patients with gastritis can eat mushrooms, which contain a variety of nutrients, such as protein, lecithin, vitamin E, vitamin C, calcium, phosphorus, iron, tin, as well as potassium, manganese, magnesium and other trace elements, and have a variety of anti-cancer, antihypertensive, hypolipidemic, anti-inflammatory and gastric and appetizing effects. When eating mushrooms in moderation, patients with chronic gastritis can strengthen nutritional supplements and promote physical recovery, which is beneficial to the body, but they should not eat too much to prevent aggravating the burden on the gastrointestinal mucosa. In addition, we should pay attention to the adjustment of the usual diet structure, regular rest and rest, eat on time, do not eat spicy, cold, hard food, eat more noodle soup, porridge, egg custard, soft noodles and other liquid or semi-liquid food, eat less and more meals, regular review gastroscopy, actively cooperate with the treatment, and promote the improvement of the condition.