Recently, Ms. Wang, 36, always felt weak, and finally fainted at home. She was rushed to the hospital by her neighbors and found intracranial lesions. It is learned that Ms. Wang usually lives alone. In order to save trouble, she always cooks meals for two days at a time. Every time she needs to eat, she takes it out to heat it. Over the years, she has formed a habit. "Overnight food" may not be the direct cause of her intracranial lesions, but we should also pay attention to it. In fact, "overnight dishes" do not only refer to dishes that have been put overnight. If they have been put for more than 8-10 hours, they are already overnight.

First of all, it can be said with certainty that the nitrite produced in leftovers is usually not enough to cause cancer. It should be noted that the amount of nitrite produced in overnight dishes is related to food types and storage conditions. For health reasons, it is better not to eat the following three overnight dishes, or it will be harmful to health in the long run.

First, green leafy vegetables are the most dangerous overnight

Usually, such as cabbage, spinach, lettuce, leek and other stem and leaf vegetables, try not to eat them overnight. After cooking for a period of time, this kind of vegetables will lose a lot of nutrients, such as vitamins and cellulose. In addition, it contains too much nitrite. Once ingested in large quantities, it will not be beneficial to health and will increase the risk of cancer.

Secondly, overnight seafood damages the liver and kidney

Crab, fish, shrimp and other seafood will produce protein degradation products overnight, which will damage the liver and kidney functions. If you really buy too much, you can pack the raw seafood in a fresh-keeping bag or box, put it in the refrigerator to freeze, and cook it next time.

Third, beware of tremella mushrooms

Whether wild or cultivated tremella, agaric, shiitake and other mushroom foods, such foods will contain a lot of nitrite once they are left overnight or after cooking for a long time. In addition, other bacteria and toxins will breed, which is easy to cause poisoning.

In a word, eating overnight dishes occasionally will not directly lead to human cancer. However, if the above three types of overnight dishes are consumed in large quantities for a long time, they will not only cause damage to the gastrointestinal tract, liver and kidney, but also increase the probability of cancer. I'm Doctor Mao Zhiqi. Pay attention to me to make your brain healthier!