Yes, you can take the flu shot while breastfeeding. It's generally considered safe and has been endorsed by various health organizations 1 .
However, just like with anything, it's about weighing the pros and cons. On the pro side, research indicates that when a nursing parent gets the flu vaccine, their body creates antibodies that may also be passed to the baby via breast milk. This can offer some level of flu protection to the infant.
On the other hand, everyone has unique health considerations. Some people may experience side effects like soreness at the injection site, a low-grade fever or muscle aches.
What's most important here is to make the choice that's right for you. If you're unsure or have concerns, have a chat with your healthcare provider. They can offer guidance based on your specific health history and circumstances.
Another important thing to note is that your flu shot (and any antibodies transmitted through breast milk) doesn’t mean your baby is fully protected 2 ; they still need their flu shot as well. You should talk with their pediatrician about ensuring your baby is protected against the flu as best as possible.