In this regard, we must first clarify two issues (a) the composition and function of bile. Bile is secreted by liver cells and capillary bile ducts, composition: 97% is water, there are bile acids, cholesterol, lecithin, bile pigments, fatty acids, inorganic salts. pH value 6.0 – 8.8 alkaline. (B) the function of the gallbladder: 1, concentration and storage of bile, the gallbladder mucosa has a strong role in absorbing water and electrolytes, can make bile concentration 5 – 10 times, so that its capacity is reduced by 80 – 90%. Most of the bile secreted by the liver is concentrated by the gallbladder and stored in the gallbladder. 2, the gallbladder has a secretory function, the gallbladder secretes mucus substances, which has the role of protecting the gallbladder mucosa. 3, the contraction and emptying of the gallbladder. The contraction function is regulated by body fluid factors and the nervous system. After eating, the fat and protein in food, and also stomach acid can stimulate the duodenum to secrete gallbladder contraction, and cause the gallbladder to contract and discharge the concentrated bile, and mix with after eating, the same can also stimulate the pancreatic enzyme secretion, and digest food. When the gallbladder is removed, its concentrated bile function disappears, and bile is not discharged in large quantities when the food chyme reaches the duodenum, but slowly discharged into the duodenum when it is not eating, and then into the small intestine. If the pyloric dilator muscle of the gastric outlet is not fully functional, alkaline bile can flow back into the stomach and neutralize gastric acid, so that the initial digestive function of the stomach is affected, and the time of emptying food from the stomach is prolonged, so there is a problem: since the After the gallbladder removal surgery, the stomach always feels bloated and easily full. After such a long time, bile reflux gastritis and esophagitis can occur, which can cause epigastric pain. Solutions (only from the nutritional point of view): 1. small amount and many meals, i.e. less food each time, multiple times a day to ensure that food can intermittently mix with bile in the duodenum. 2. do not lie down too much on weekdays to facilitate the smooth entry of bile into the small intestine. 3. low-fat diet, more vegetables and fruits to prevent the occurrence of steatorrhea.