2. Kimchi is found all over the world, and its flavor varies with different practices in different places. Among them, Fuling mustard tuber, French pickled cucumber and German sweet and sour cabbage are called the three largest kimchi in the world. The prepared kimchi is rich in lactic acid bacteria, which can help digestion. However, there are certain rules for making kimchi, such as not touching raw water or oil, otherwise it is easy to rot and so on. If you eat contaminated kimchi by mistake, it is easy to have diarrhea or food poisoning.