Caffeine and Alcohol
When I was pregnant with my first child, I was very good: I stopped drinking coffee and colas, and stopped eating chocolate. It was very hard - especially the chocolate part! But I did it.
When the baby finally arrived, I couldn't bear it any more. How much more do I need to suffer for this child? As it turns out, you can have caffeinated drinks while breastfeeding. You can even have an alcoholic drink as long as you do so in moderation.
Caffeine does accumulate in the baby's body. Infants have immature livers and cannot metabolize (break down) caffeine. A baby can begin to metabolize caffeine after 3 months of age. Probably the best thing to do is to try a cup of coffee and observe your baby for irregular reactions. Is he OK? Or is he hyperactive?
So, the answer is, Yes, you can drink coffee while breastfeeding, but do so in moderation and check for adverse effects on your baby. Read more from this LLL article.
Consider this: if you have one beer or one glass of wine (on an empty stomach), the alcohol can be found in your breast milk within 30 to 60 minutes. It takes about 2 to 3 hours for a 120 pound woman to clear that alcohol out of her system. It takes longer to clear the alcohol from hard liquor. So, it would be prudent to breastfeed your baby, have a drink, and then wait a few hours before breastfeeding again.
Infants have immature livers and cannot filter out the alcohol from their blood stream. As the baby gets older, he will be able to clear the alcohol better.
Excessive drinking and breastfeeding is not recommended. Women who drink more than two alcoholic drinks every day have babies with poor motor skills. If you happen to get drunk by accident (if there's such a thing), then you should not breastfeed until you are sober. Once you are sober, the alcohol has cleared out of your body and will not be in the breast milk. In the mean time, if your breasts are engorged and painful, you can pump out your milk and throw it away.