Swallowing yellow cake without chewing will affect digestion. Although yellow cake is relatively easy to digest food, but not chewing directly swallowed will affect digestion. Because through chewing in the mouth for preliminary digestion, which will reduce the burden on the stomach, and chewing movement can stimulate the secretion of salivary glands, secretion of saliva contains amylase, can initially convert starch into maltose, which helps to reduce the burden on the stomach, promote food digestion and absorption. Therefore, when eating yellow cake to chew slowly, usually eat any food, try to chew the food before swallowing, so that it is more conducive to digestion and absorption of nutrients in the food, but also to reduce the burden on the stomach.