In terms of their usefulness for health, it should be said that vodka is healthier than whiskey because it contains ethanol and ethanol is easier to break down in the liver, while whiskey may contain artificial mixtures that are difficult for the liver to break down. In addition, whiskey has a higher sugar level than vodka. The fact is that no matter what type of alcoholic beverage you drink—whether beer, wine, tequila, vodka or whiskey—they all contain the same ingredient that gets you intoxicated.