It is an alkaline food that is low in calories and contains many healthy ingredients.Dietary fibers release harmful cholesterol accumulated in blood vessels out of the body and increase beneficial cholesterol to prevent arteriosclerosis. Potassium also expels salt from the body, helping to prevent and treat high blood pressure. Pectin, a water-soluble dietary fiber, also increases the viscosity of gastric juice and releases malignant cholesterol to suppress a rapid increase in blood pressure, and phenolic acid prevents stroke by neutralizing unstable harmful oxygen in the body. The cecetin in apples strengthens lung function, protecting the lungs from cigarette smoke and pollutants. It also contains a lot of organic acids that remove fatigue substances and vitamin C, which is good for skin beauty. The pulp of apples is good for gum health, and apple acid has the effect of reducing shoulder stiffness. Apple vinegar is used to treat burns and boils.