[jmduke]

Beer usually hovers around the 150-200 calorie mark per bottle. If you're putting away a six-pack every weekend, that adds up very quickly.

(Which is not to say that you'll magically lose weight if you stop drinking, or that it's impossible to lose weight if you're drinking every week.)

[hippich]

If you drink 6 pack in one evening - this is "overeating" already. All these extra calories will immediately start converting into fat.

On the other hand if you drink 6 pack during the span of the whole week - it will hardly make a difference.

So yeah - it really depends on how much beer peak usage we are talking about here.