Is marinated vegetables harmful to health, Zhihu?

In the process of marinating, the marinated soup needs to be cooked for a long time. Under normal circumstances, the salt will react with protein to generate nitrite, which will make the braised dishes more fragrant and full of flavor. At present, some unscrupulous traders will directly add industrial nitrite to the braised dishes in order to taste good, but excessive nitrite will lead to nitrite poisoning. Not only stewed vegetables, but also sauces with high salt content naturally contain nitrite, but they are generally within the normal range. I am most afraid of marinated vegetables processed with industrial nitrite. No matter what kind of braised dishes, I still eat less. Eating too much nitrite for a long time is bad for the stomach, which may lead to gastric cancer in severe cases.