Nutritional analysis of vinegar: 1. Vinegar can stimulate appetite, promote the secretion of saliva and gastric juice, help digestion and absorption, make appetite strong and promote digestion and accumulation; 2. Vinegar has good bacteriostatic and bactericidal effects, and can effectively prevent intestinal diseases, influenza and respiratory diseases; 3. vinegar can soften blood vessels and lower cholesterol, which is a good prescription for patients with cardiovascular and cerebrovascular diseases such as hypertension; 4. Vinegar can protect skin and hair well. In the ancient medicine of China, there was a record that vinegar was used as medicine. It was believed that vinegar had the effects of promoting hair growth, beautifying, lowering blood pressure and losing weight. 5. Vinegar can eliminate fatigue, promote sleep, and relieve discomfort symptoms of motion sickness and seasickness; 6. Vinegar can also reduce the alcohol concentration in gastrointestinal tract and blood, and play the role of sobering up; 7. Vinegar can also soften chicken bones and shark fins and promote the absorption of calcium. But people with gastric ulcer and hyperacidity should not be jealous.