Instant noodles are a kind of instant noodle food, and there is no harm for normal people to eat them in moderation or occasionally. However, eating large quantities of instant noodles for a long time, or even replacing regular meals with instant noodles, may cause nutritional deficiency, obesity, digestive discomfort, and even cause various disease problems. 1, nutritional deficiency: instant noodles use flour and food additives as the main raw materials, and if consumed in large quantities for a long time, they do not meet the daily body needs of protein, vitamins, minerals and other nutrients, which can easily cause nutritional deficiency. 2, obesity: most of the instant noodles on the market need to be fried in the production work, and the carbohydrate content of instant noodles is high, long-term consumption in large quantities can easily lead to obesity; 3, digestive discomfort: instant noodles lack of dietary fiber, vitamins and other nutrients that can promote gastrointestinal motility, so long-term eating instant noodles people are prone to loss of appetite, poor digestion, constipation and other digestive problems. Digestive symptoms such as indigestion and constipation. Long-term constipation is also one of the high-risk factors for intestinal diseases such as enteritis and intestinal cancer; 4, mental changes: instant noodles are high in calories and relatively low in nutrients. The body needs nutrients, such as lecithin and glucose, to provide energy, so people who consume instant noodles for a long time, or even use them as a direct substitute for the entire diet of a meal, are prone to mental changes such as memory loss and fatigue; 5. Increased risk of cardiovascular morbidity: instant noodles contain high salt, and a long-term high-salt diet may increase the risk of cardiovascular diseases such as hypertension and cerebral thrombosis. In addition, from the perspective of traditional Chinese medicine, instant noodles contain oil and grease, and long-term consumption in large quantities can easily cause fire and induce acne and mouth ulcers in some people. Especially for children who are growing and developing, as well as the elderly whose body functions are gradually declining, they should minimize or avoid instant noodles.