Steatorrhea is a clinical syndrome in which the digestive and absorption functions of the small intestine are reduced for various reasons, so that nutrients are not completely absorbed and are excreted in the feces, causing nutritional deficiency, also known as dyspepsia syndrome. The diet of steatorrhea patients is very important. The gastrointestinal tract of steatorrhea patients is relatively fragile, so they should eat some more easily digestible food. Do not eat foods that are too oily, too cold, too spicy, and the diet should be light. 1.Prevent the occurrence of primary diseases such as dietary hygiene can prevent steatorrhea caused by intestinal bacterial infection. The prevention of steatorrhea caused by endocrine diseases such as hypothyroidism lies in the treatment and prevention of the original disease. 2.Avoid over-eating fatty foods. 3.Adjunctive treatment Give a high-calorie, high-protein, low-fat diet. Because monosaccharides are more easily absorbed, foods containing large amounts of monosaccharides such as bananas can be given.