Emma, DO NOT let her feel like you are doing things wrong with D or have with B!! Mummy knows best!
Honestly, you can't do it wrong. Ok, we all want them to sttn, but if protein were the magic answer then all of us would be trying to stuff meat down their throats as soon as they could have it! It is NOT that easy, and it doesn't work that way.
Not to mention that meat is not the easiest thing for little tummies to digest. And this is all assuming that you have a baby that will eat anything (I know D is good with solids, but F was not so if I had been given that advice she would have gotten a right slap upside the head for assuming she knows best for MY baby!).
Does this woman even have children?!?!
Hugs hugs hugs!! You are doing fantastic reading your own baby!!