Pickled sauerkraut is a method of pickling and fermenting fresh vegetables in a sealed jar to become vegetables with special taste. Sauerkraut has been eaten in China for thousands of years, which is also an important measure to solve people's food and clothing. In the days when the green and yellow are not connected, sauerkraut has saved many people. Sauerkraut also contains a lot of dietary fiber, vitamin C and plant enzymes. These nutrients can not only promote gastrointestinal digestion, but also stimulate appetite. It can be seen that eating sauerkraut is not harmful to the body, but also has a certain health care effect.

People always say that sauerkraut is unhealthy, because it will produce a kind of nitrite in the process of pickling, which is recognized as a carcinogen by WHO. However, people don't know that even fresh vegetables contain nitrite as long as they are green vegetables. Also, there is little nitrite in vegetables, which will be harmful to health unless it is accumulated to a certain extent. Moreover, sauerkraut contains enzymes, which can inhibit the transformation of nitrate into nitrate, so as long as it is not eaten three times a day, eating sauerkraut for a long time is harmless to the body.