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What are the disadvantages of eating leftovers often?

The dangers of long-term eating of leftovers include malnutrition, food poisoning, and increased risk of gastrointestinal diseases.

After leftovers are repeatedly heated or repeatedly brewed with boiling water, water-soluble vitamins such as B vitamins almost disappear, and most of the minerals are also lost. Long-term consumption is prone to malnutrition. The nitrite content in leftover rice will gradually increase as the storage time increases. After long-term consumption, it is easy to cause nitrite poisoning, causing abdominal pain, diarrhea, dizziness, headache and other poisoning symptoms.

Improper storage of leftovers is extremely easy for bacteria to breed. Long-term consumption will cause a large number of bacteria to enter the gastrointestinal tract, increasing the risk of gastrointestinal diseases. It is not recommended to eat leftovers for a long time and should be cooked as needed. In addition, when eating leftovers, be sure to reheat them thoroughly.