Just wanted to share what he said about mixing formulas which is to say that you should never mix formulas without the guidance and permission of a doctor. This is not a great thing to do but could be an acceptable practice for acquiring your LO to a new taste with another very stern emphasis on doing this under the guidance of a doctor only as some formulas are not as safe to mix as you would think.
I didn't get to ask why as chaos erupted in my chemistry lab and I had to quickly hang up since he had answered the immediately important questions for me. I'll try to remember to ask why when I call back next week to tell them how LO took to the mixing of Good Start and Nutramigen.
Re: Mixing formulas - info from our GI...