Noodles are well digested, the main component of noodles is starch, which is the most easily digested nutrient by the human digestive system, except for oat noodles. Because oat noodles are processed from oat, which contains substances that are not easily digested by the human body. When eating noodles, under the action of salivary amylase in the mouth, the starch is partially broken down, which facilitates its complete breakdown in the small intestine, which is an important reason why starch is easier to digest and absorb compared to protein and fat. Noodles are digested slowly in the stomach because starch is not easily broken down by gastric juices, so eating noodles will make people feel full for a longer period of time, thus playing a role in appetite control, which gives the intestines sufficient space for digestion and absorption. In addition, cooking noodles in the production process will absorb a lot of water, water with the noodles into the body to moisten the stomach and intestines, to promote the transport of water and grain, will also play a role in helping digestion.