While the amount you see pictured here is the five ounces experts count as a drink, many people fill their glasses much higher. Poured to the brim, a normal size glass holds up to eight ounces. Some oversize goblets contains as much as 14 ounces-giving you three drinks in one. Americans drinkers overwhelmingly prefer beer. A single can or bottle is 12 ounces, or one drink.
Beer is implicated in accidental injuries more often than wine or hard liquor.
That's how much experts count as a single drink. Needless to say, the jumbo martinis or margharita's which are the rage in bars, pack in at least twice this amount. Many older Americans prefer hard liquor. 1 oz liqour has the same amount of alcohol as 12 oz beer or 4 oz wine. This means one drink can put you over the limit.