Reflux esophagitis is an inflammation of the esophageal mucosa caused by the dysfunction of the lower esophageal sphincter, resulting in reflux of gastric and duodenal contents into the esophagus. The main clinical symptom is heartburn, which is a burning sensation or discomfort behind the sternum; some patients have cool chest pain resembling angina pectoris, dysphagia, and a feeling of obstruction in the pharynx; a small number of patients have mainly respiratory symptoms, manifesting as cough, shortness of breath, non-seasonal asthma, and recurrent pneumonia to interstitial fibrosis; individual patients show ear pain. Symptoms often appear one hour after a meal, especially after a full meal, and are aggravated by lying down, forward bending of the torso or forceful breath-holding. Nutritional principles: 1. Reduce the amount of food: full meals are prone to transient lower esophageal sphincter relaxation. Should be chewed slowly, a small number of meals. 2, reduce fat intake: fat can delay gastric emptying, stimulate gallbladder contraction and secretion, and reduce the lower esophageal sphincter pressure. Therefore, the daily energy supply ratio should not exceed 25%. Cooking with boiling, stewing, blanching, braising, not frying with oil. 3, increase protein intake: probably because protein stimulates gastrin secretion, so that the lower esophageal sphincter pressure increases. 4, diet should be less irritating: avoid causing lower esophageal sphincter pressure, prohibit fat, cream, fried food, chocolate, coffee, cocoa, fresh lemon juice, fresh orange juice and other acidic beverages, a variety of alcoholic products, as well as strong spices condiments such as chili, curry, pepper, garlic, mint, etc.. Be careful with coffee and strong tea. 5, obese people should reduce weight: obesity increases intra-abdominal pressure and aggravates food reflux, so obese people should reduce weight. 6, change lifestyle, pay attention to eating position to reduce reflux: use oblique lying position, preferably elevate the head of the bed about 10 to 20cm to reduce reflux. Use multiple pillow pads on the head and upper back to make the reclining position 30°. Avoid lying in bed immediately after meals and eating before sleep. Increased relaxation of the lower esophageal sphincter after a meal and increased reflux in the recumbent position. Avoid wearing tight-fitting clothes, avoid bending, end heavy movements after meals to avoid increasing abdominal pressure to induce reflux. 7, avoid smoking and alcohol: tobacco and alcohol make the lower esophageal sphincter pressure drop. 8, active treatment of cough, constipation, etc.: to reduce reflux induced by increased abdominal pressure.