It depends on the baby. I tried going up to the next size a few times but she seemed to be overwhlemed and would choke/gag so I'd switch back. She's nearly 9 months old and is barely used to the size 2 / medium flow nip.
I didn't switch to size 2 until my LO was around 6 months old as she just couldn't adjust to it. We switched to size 3 when she was around 9 months. She took in too much air when we tried earlier.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.