Studies show that many can tolerate a single serving per day. If you do not notice an increase in symptoms after trying a glass of wine, you should be OK. The study also suggested this drink should be at the end of the day. They suggest that the relaxing value of a single serving can help create an opportunity for quiet relaxing rest.

You should be very careful with beer. It has far more than alcohol in it that can cause problems. Much of a beer hang-over is an allergic/toxic reaction to non-alcohol components in beer.

Just remember, going past the single serving can cause problems that, like Vanilla Bean said, can take a week or two to recover from. Think of what it would be like to be hung-over for a week or two.

My best to you.