Believe me when I tell you, this question was near impossible to answer. I tried to do the best I could using the existing "scientific" literature, and I came up with this post. Yes, it is on my blog:

<a href="http://thelastpsychiatrist.com/2007/02/just_how_many_drinks_a_day_is.html">http://thelastpsychiatrist.com/2007/02/just_how_many_drinks_a_day_is.html</a>

but I think it is relevant here, and I hope it helps. If it is useful to anyone here, please pass it along to others you think would benefit.

Sigh. I'm new to the internet.

Here's the correct link:

http://thelastpsychiatrist.com/2007/02/just_how_many_drinks_a_day_is.html