I am enjoying all the comments and I can’t help but say something about the ABM. Of course the babies gain more weight on it. That’s it’s whole job from what I understand- ABMs are approved when they show the baby can gain weight, not what nutrients can be derived from it. Yes, I am being a bit tongue in cheek here. 
I wouldn’t be surprised to find out the baby is taking less volume than needed, but it would be smart to look at mom’s health issues as Lisa M mentioned.
Janet Dombro, IBCLC 

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