Vinegar can be drank directly, but under normal circumstances people cannot drink vinegar casually. After all, vinegar has a component called acetic acid, which has a certain stimulating effect on the human gastrointestinal tract. Vinegar can promote Human digestion, but acetic acid affects the intestinal mucosa, so generally we try not to drink vinegar. As a condiment, it can play a regulating role in the process of cooking various foods, but if too much is used, it will not taste good.