Second, drinking too much vinegar is harmful to the body: after a large amount of vinegar enters the human body, it will change the ph value of gastric juice, strengthen the acidity in the gastric environment, and cause damage to the gastric mucosa. A large amount of vinegar consumed by healthy people can cause stomach pain, nausea, vomiting and even acute gastritis; A large amount of vinegar consumed by gastritis patients will aggravate the symptoms of gastric diseases, and people with ulcers can induce ulcer attacks. At the same time, the absorption of acetic acid will also affect the acid-base balance of the whole human body. Physiologically speaking, excessive intake of acidic food will increase the acidity of blood and body fluids and lead to acidosis.