Instant noodles expired one month is not recommended for consumption, the shelf life of the product mostly refers to the storage in a suitable environment to ensure food quality, such as has expired one month may deteriorate, grease oxidation will breed bacteria, mold and other microorganisms, consumption may lead to digestive infection bacteria, causing discomfort. Instant noodles are a convenient and fast instant food products, although they may add food preservatives and have a long shelf life, but they are prone to deterioration beyond the shelf life and should not be consumed further. If deterioration has occurred, it should not be eaten, otherwise it may lead to abdominal pain, diarrhea, vomiting and other digestive discomfort, and even dizziness, headache, fever and other food poisoning, endangering health. If you accidentally eat a month-old instant noodles caused by gastrointestinal discomfort, you can use norfloxacin, montelukast and other drugs to relieve gastrointestinal discomfort under the guidance of a doctor, and in serious cases, you need to be in the hospital for gastric lavage. The food within the shelf life is not necessarily edible, it needs to be preserved in strict accordance with the product description conditions, once the storage conditions have changed will easily lead to food deterioration, shorten the shelf life and can not continue to eat. It is recommended to develop good habits in daily life, check the date of manufacture and expiry date of food before eating, even if the food beyond the shelf life has not deteriorated, the taste and nutrients can be reduced to a certain extent, should avoid consuming expired products, for the benefit of health.