As the name implies, digestion is only a part of gastroenterology diseases, and the other important part is absorption. If we were to write a couplet for gastroenterology, the first couplet would be “digesting the delicious grains”, the second couplet would be “absorbing the essence of heaven and earth”, and the horizontal couplet would be “balancing nutrition”. Food enters the esophagus through the chewing and swallowing of the mouth and teeth, and the journey of digestion and absorption begins. The esophagus has glands that secrete a variety of mucus, but the digestive effect of ordinary food is weak, but more important is the lubrication. Once it enters the stomach, a huge sac, the stomach begins to secrete gastric juices, most importantly gastric acid, and pepsin. The digestion of protein begins in the stomach. When food enters the small intestine, there is also the secretion of intestinal fluid, bile and pancreatic fluid, which are like sharp scissors that cut large pieces of food into small pieces, because the glands of the intestine are like a small, slender mouth, only small nutrient particles can be swallowed by these small cherry mouths, which is absorption. Of course, absorption in a broader sense also includes the fine particles of nutrients that enter the bloodstream and travel throughout the body, eventually entering the cells. So digestive diseases, if the patient has poor digestion, even if the daily intake of phoenix marrow and dragon liver is difficult to turn into sufficient nutrition. Therefore, the new technology is able to break down the food into tiny nutrient particles that are fine enough to be absorbed directly into the bloodstream by the intestinal fiber villi through digestive enzymes produced by science and technology, which is the short peptide enteral nutrition. The patient can achieve the better effect of sending the difficult-to-absorb gentian into the bloodstream by drinking the fluid nutrient into the digestive tract through oral and nasal feeding methods. Enteral nutrition based on various oral short peptide fibrates has become the logistical support force for treating gastroenterology. In the war with digestive diseases, this efficient supply and transportation force constantly delivers supplies and ammunition to where they are most needed in the gunfire-filled crossfire. Allowing the digestive war to show good momentum from the start.