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- Number of pages: 12
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- File Size: 0.37 MB
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Description
As typical glass sizes have grown and popular drinks have increased in strength over the years, the old rule of thumb that a glass of wine was about 1 unit has become out of date. Nowadays, a large glass of wine might well contain 3 units or more – about the same amount as a treble vodka. So how do you know how much is in your drink? A UK unit is 10 millilitres (8 grams) of pure alcohol. It’s actually the amount of alcohol that an average healthy adult body can break down in about an hour. So, if you drink 10ml of pure alcohol, 60 minutes later there should be virtually none left in your bloodstream. You could still be suffering some of the effects the alcohol has had on your body though, such as feeling thirsty if you hadn’t drunk any water. Increasingly, bottles and cans show the number of units they contain. Tables like the one at the back of this leaflet and online calculators (e.g. www.nhs.uk/units ) also provide unit information for a range of common drinks. Good labelling should mean you won’t normally need to work it out, but the exact number of units in any alcoholic drink can always be found by calculating the amount of pure alcohol in it. You just need to know the volume and how ‘strong’ the drink is – given by the percentage of alcohol by volume (ABV). The ABV is widely available and shown on beer pumps, bottles, cans and so on.
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