Disease analysis: Hello, that's not true. When spring comes, you can eat more vinegar, of course, without stomach trouble. Suggestion: one of the reasons is sterilization, because everything recovers in spring, including bacteria, so sterilization with vinegar can reduce the problem of food deterioration to some extent; The second is refreshing. If you don't know in spring, you will be sleepy and jealous. The third is to stimulate appetite. Some people who are sleepy in spring have a bad appetite. Vinegar can be used to stimulate appetite. Please contact me if you have any questions. Good luck.