The food has good fluidity and can enter the intestine quickly after mixing with gastric acid for decomposition and absorption, which can reduce the digestive burden of the gastrointestinal tract and contains relatively more water, which can play a softening effect on the food residue in the intestine and assist in digestion. 3, foods containing high starch, such as sweet potatoes and potatoes, contain a lot of starch, which is quickly decomposed and absorbed under the action of amylase and will not increase the digestive burden of the gastrointestinal tract. The digestive burden of the intestine.