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Fixic Q&A: Does drinking alcohol raise or lower sugar levels?

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Alcohol can do both, depending on amounts and types.  Moderate amounts of alcohol may increase levels, especially if they are higher carbohydrate drinks such as beer or sweeter mixed drinks.  Too much alcohol can cause low blood sugar by suppressing the liver’s ability to release glucose into the bloodstream; the liver preferentially breaks down alcohol (treated like a fat) before other nutrients.  It can take more than one hour to break down one drink.