The vinegar is composed of Acetic acid mainly, of which content is around 3-5%, Organic acid and Amino acid formed from raw materials or created during fermentation process, and has peculiar smell and special taste. This sour taste stimulates your appetite by improving the secretion of saliva or gastric juice. Furthermore, it prevent you from being poisoned by food as it prolongs rotting of food by reducing the pH and has strong sterilization effect. Additionally, naturally brewed vinegar makes a red blood cell softened and, therefore, helps red blood cell pass through peripheral blood vessels easily.