Pork that has been frozen for a year is generally not recommended. Pork that has been frozen for a year has the potential for spoilage, and consumption by patients can irritate the gastrointestinal tract and impair health. Pork that has been frozen for too long may have a relative loss of nutrients and reduced food value. Reserve meat is usually stored for about 4 months, during which the growth and reproduction of microorganisms are inhibited. When pork is frozen for too long, it may become spoiled and is generally not recommended for consumption. Spoiled food will irritate the mucous membrane of the gastrointestinal tract when ingested, leading to symptoms such as diarrhea, abdominal pain, abdominal distension, and in severe cases, food poisoning. At the same time, due to the long storage time of pork in the refrigerator, the nutrients in pork may be partially destroyed, so the nutritional value of such pork decreases. If you experience discomfort after eating pork that has been frozen for a year, it is recommended that you go to a regular hospital in a timely manner to undergo a relevant examination to determine the cause of the illness.