Instant noodles should not be consumed after the 6-month shelf life. Eating instant noodles within the shelf life can ensure the safety and nutritional value of instant noodles, but after the shelf life, neither safety nor nutritional value can be guaranteed. Instant noodles are fried foods, and preservatives, antioxidants and other food additives are added to them during production. If the shelf life has passed, the preservatives and antioxidants inside noodles no longer work, the fat in the instant noodles are prone to oxidation and decomposition, resulting in lipid peroxide and fat rancidity. At this time, the preservatives will also produce toxic aldehyde peroxides, if eaten at this time, it is easy to cause food poisoning, manifested as abdominal pain, diarrhea, nausea, vomiting and other gastrointestinal symptoms. In severe cases, there are even central nervous system symptoms such as dizziness and dizziness. If you accidentally consume expired instant noodles, you need to pay close attention to your whole body, drink more warm water to promote metabolism, and seek medical attention if you experience obvious gastrointestinal discomfort. In addition, instant noodles that have passed their shelf life may become moldy, and consumption of moldy instant noodles may induce cancer. Because of the low nutritional value of instant noodles, it is not recommended to eat for a long time, and occasionally eat must be within the shelf life, otherwise it will not only have no nutritional value, but also cause different degrees of damage to health.