Back story: My DD has been on Similac advance since around 4 months and my MIL also was buying it too so we wouldn't have to always pack a bag to be over there. She has always bought the same stuff and then when I went over there this past weekend I went to make DD a bottle and noticed she bought Soy formula. She drinks soy milk and is on a health food kick.
Question: Is that going to make DD sick if she is being switched between soy and milk based formula?
Its not all the time but every friday she is over there. I feel bad, because I know she probably just saw that it was soy and thought it would be better for her (She didn't use formula at all with DH or SIL). I have to take DD over there tomorrow and I'm nervous to say anything. TIA
Re: Soy and Milk formula ?