I feel stupid for not knowing this.
After doing tons of research on kellymom.com about not being able to keep my supply up with LOs needs (I EP), I've determined that we may be overfeeding him. One suggestion was to use a slow flow nipple. We have Dr. Brown's bottles and love them, but apparently Dr. Brown's nipples do not meet the slow flow criteria. Can we just buy different nipples and use them on our bottles, or do we need an entirely new set of bottles as well?
Re: Do all nipples fit all bottles?
No. Certain brands are only able to be used with theirs. Avent, Tompee Tippee, etc.
Gerber/Evenflo standard bottles are interchangeable. They have a universal opening and the collars fit each other.
Just depends.