Vermicelli eaten on an empty stomach can lead to indigestion and stomach discomfort, so do not eat vermicelli on an empty stomach. Vermicelli is indigestible food, and some manufacturers put additives, such as thickeners, in the process to pursue the taste, so that the vermicelli will become especially strong and tough, but lead to the vermicelli is not easy to digest. When eating vermicelli on an empty stomach, more stomach acid will be produced in the stomach, and the vermicelli is not easy to digest, the vermicelli will accumulate in the stomach will cause indigestion, causing stomach discomfort, gastric distension and other conditions. Although many people like to eat vermicelli, do not eat too much at once and do not eat often. Not only will it cause indigestion, but alum is added during the processing of vermicelli, and alum contains lead, which can lead to excessive lead in the body when consumed regularly, and lead can affect the human nervous system.