I tried switching my daughter as she grew but she hated the faster flow so we stuck with the slow one until we stopped her bottle. her Dr said there is nothing wrong with not changing...it's just preference of baby.

Breast fed babies are always supposed to use the slowest flow nipples because it mimics the breast. I think...that's what I remember anyway. It's been a few years 😂

@smokahontass, wow I feel like a bad mom. 😑😂

We switch them as they grow.