Liquor is not good for your health. Grape skins and seeds rich in polyphenols are removed in the process of liquor production, and polyphenols have a positive effect on preventing arteriosclerosis. The content of polyphenols in grape skin is 23% ~ 35%, pulp is 2% ~ 5%, and grape seed is 65% ~ 70%. The reduction of polyphenols in liquor has no obvious effect on preventing heart disease and inhibiting arteriosclerosis.