Harm of vegetables overnight

According to scientific determination, the most obvious disadvantage of overnight dishes is the significant increase of nitrite. Even if stored in the refrigerator, it can only delay the doubling time of nitrite at most. Nitrite can't be completely and effectively decomposed even if it is reheated. Once in the stomach, nitrite will become nitroso compounds, such as nitrosamines, which is recognized as one of the risk factors of gastric cancer.

When the weather is hot, nitrite in overnight meals will not only multiply in large quantities, but also be easily contaminated by bacteria. After eating, it is easy to cause intestinal infectious diseases such as gastroenteritis and even dysentery, so overnight dishes are generally not suitable for eating.

Generally speaking, the nitrate content of stem and leaf vegetables is the highest, the nitrate content of melon vegetables is relatively low, and the nitrite content of roots and cauliflower is in the middle. Therefore, it is best to eat green leafy vegetables every day, and throw them away if you can't finish them (it is recommended that you eat more and cook more, so as not to waste them), while fruits and vegetables can be stored in the refrigerator, but the storage time should not exceed 12 hour.

In short, you can't eat overnight dishes, which will be harmful to your health.