One of the most common or most popular questions that I get all the time is whether or not moms have to pump and dump their breast milk after they've had an alcoholic drink. In a nutshell the answer is no, not necessarily. If you want a glass of wine two times a week that's absolutely fine, I would recommend feeding the baby 1st and then having the drink. If you go a little while then your at a wedding or friends party and you're really feeling it, then I would recommend probably pumping and dumping the next one or two feedings.
In general the amount of alcohol in the standard glass of wine and beer it's okay, in fact having a dark beer can help with milk supply as well. So if you want to have a Guinness that's okay. Again, a glass of wine, a small glass of wine is fine it would help relax you. If there's alcoholism in your family or any kind of liver disease you might want to be a little bit more careful about your alcohol intake as far as going through the baby. There are products out there if you are very, very nervous about how much is going through there are products like milk screen which is a little strip that you squeeze some breast milk onto and it will tell you the levels of alcohol in your system. And so that's always an option as well, but if you want to have a drink have a drink and enjoy it.