Yes, it is generally safe to drink caffeine while breastfeeding, but experts recommend limiting caffeine intake to about 200 to 300 milligrams per day. Small amounts of caffeine do pass into breast milk and some babies may be sensitive to it, showing signs such as irritability, increased fussiness, or trouble sleeping. Younger babies and newborns metabolize caffeine more slowly, so it is advised to monitor your baby's reactions and adjust your caffeine consumption accordingly. Drinking caffeine before or right after breastfeeding and spacing out caffeine intake can help minimize its effects on the baby. Overall, moderate caffeine intake is considered safe for most breastfeeding mothers and their babies.