<P> A standard drink is a measure of alcohol consumption representing a hypothetical beverage which contains a fixed amount of pure alcohol . A standard drink varies in volume depending on the alcohol concentration of the beverage (for example, a standard drink of spirits takes up much less space than a standard drink of beer), but it always contains the same amount of alcohol and therefore produces the same amount of drunkenness . </P> <P> The standard drink is used in relation to recommendations about alcohol consumption and its relative risks to health . Many government health guidelines specify low to high risk amounts in units of grams of pure alcohol per day, week, or single occasion . The concept of the standard drink is meant to help visualize and estimate the absolute alcohol content of various drink concentrations and serving sizes . </P> <P> For example, in the United States, a standard drink contains about 14 grams of alcohol . This corresponds to a 12 - US - fluid - ounce (350 mL) glass of beer, a 5 - US - fluid - ounce (150 mL) glass of 12% wine, or a 1.5 - US - fluid - ounce (44 mL) glass of spirit . </P> <P> Different countries define standard drinks differently . For example, in Australia, a standard drink contains 10 grams of alcohol, but in Japan, it contains nearly 20 grams . In addition, a standard drink is often different from normal serving size in the country in which it is served . </P>

How many fl oz in a large glass of wine
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