is reduced-calorie beer created by removing dextrine, a tasteless carbohydrate. Although beer, wine and spirits all contain calories, their consumption does not appear to increase weight! See Alcohol, Calories and Weight.
Light beer refers to beer which is reduced in alcohol content, or in calories, compared to "regular" beers. Light beers may be chosen by beer drinkers who wish to manage their alcohol consumption or their calorie intake; however, they are sometimes criticised for being less flavourful than full-strength beers, being (in perception or in fact) "watered down".